Firefly in Honkai Star Rail: guide & build 🔥

Detailed guide to Firefly in Honkai: StarRail with recommendations on how to create the best build and rotation within the battle. As a damage-dealing heroine, she is entirely focused on destroying enemies and breaking through their vulnerability in the enhanced state of her superpower, which is her key combat mechanic. During this state, Firefly is highly effective at reducing the enemy's durability bar and gains the ability to deal damage with "super penetration".

Taking into account the character's features, we will analyze the work of abilities, traces and eidolons in order to choose the best set relic and suitable weapons. Let's consider the priority of leveling up skills and the optimal final values ​​of all characteristics. We will show examples of harmonious groups, including F2P teams, suitable for any turn-based battle scenario. Additionally, we will present a complete list of consumable resources and everything you need to upgrade Firefly.

Firefly is a heroine created by scientists for the sole purpose of piloting the Strategic Exclusive Mech (SEM). For the same reason, she suffers from entropy loss syndrome and is forced to remain in the armor shell to maintain viability. As a legendary playable character, she belongs to Paths of Destruction and wields the fire element. He is a universal damage dealer who shows himself well when passing various combat content due to high and stable damage, as well as built-in enhancements.

Firefly's biography in Honkai: Star Rail

Firefly from Honkai: Star Rail is an artificially created warrior who controls the heavy armor of Glatiramer's Firefly-IV-type Skyfront Iron Cavalry, now a member of the criminal organization "Stellaron Hunters" under the alias Sam.

First encountered in the story campaign in the Reconstruction mission. "The Sound and the Fury", where in the final there is a boss fight Stellaron Hunters: Sam. The true personality is revealed in the task "Small Town Grotesque".

Firefly's story begins in the now-destroyed Republic of Glatiramer during the Swarm invasion, as recounted in the description of the planar ornaments of the same name. "Glatiramer Skyfront". Under the never-ending onslaught of the Propagation bugs, humanity decided to create “living weapons” to turn the tide of the war in their favor. This is how the knights of the “Iron Cavalry” appeared - artificial people piloting armor, including the heroine in question.

Firefly's last fight marked the victory over the swarm and the complete destruction of the Glatiramer empire. Join the ranks Stellaron hunters the girl got caught after the end of the war: members of the faction met the pilot drifting exhaustedly in space. Subsequently, the heroine, together with Kafka participated in search missions Blade и Silver Wolf.

How to get Firefly in Honkai: Star Rail

Firefly can be dropped from the limited "Event Jump: Character" banner that appears in the second phase. 2.7 versions. The event jump is available from December 25, 2024 to January 14, 2025.

If you don’t want to miss the Firefly rerun in Honkai: Star Rail, as well as the “Jumps” of other legendary and epic characters, add them to your “Bookmarks” banner schedule.

Features

As Firefly rises, Sam's basic characteristics increase - attack power, health, defense. You can see the exact indicators at each level in the table below:

Additional stats speeds and taunts are fixed and do not change during the process of leveling up the character.

Basic skills

Firefly plays from penetration effect and belongs to the class of universal damage dealers of the Path of Destruction, therefore it has high single and massive damage. The girl's specificity is to consume a significant part of her health to recharge her superpower, the cost of which is 240 units. energy. In the enhanced state of the ultimate, buffs are applied, and the skill and basic attack are changed to other skills with increased damage and the ability to cause a fiery weakness in the enemy.

A regular skill helps fill the energy of a superpower by half, while taking away health. After switching to the ultimate stance, all attacking skills gradually restore the spent HP, at the same time reduce the resistance of enemies with greater efficiency and can inflict “super penetration damage”. The fact that the heroine has two states - normal and enhanced - forces us to understand how Firefly’s abilities work, as well as to track the relationship between skills. Let's take a closer look at these points below.

Active skills

First of all, it is worth examining the main skills of the character, which include: technique, basic attack, skill и superpower.

Command: Meteorite Burn

Technique "Order: Meteor Incineration" || Weakening

Lifts into the air, where he can move without restrictions for 5 seconds. When time runs out or an attack is performed, Sam immediately descends into the target area and attacks all enemies. Upon entering battle, for 2 turns at the beginning of each wave, inflicts fire vulnerability on all enemies, then deals fire damage to all enemies equal to 200% of Sam's attack power.

Order: Flame Charge

Basic Attack "Order: Flame Charge" || Single attack

Deals fire damage to the target equal to 50-130% from the strength of Sam's attack.

Firefly Type IV: Pyrogenic Execution

Basic Attack "Firefly Type-IV: Pyrogenic Execution" || Single attack

Restores health equal to 20% of max. Sam's HP. At the same time, deals fire damage to one enemy equal to 100-260% from the strength of Sam's attack.

Order: Aerial bombardment

Emboldening Salvo "Order: Aerial Bombardment" || Single attack

Consumes health equal to 40% of max. Sam's HP to restore 50-65% superpower energy. Deals fire damage to one target equal to 100-250% from the strength of Sam's attack. If Sam's current HP is not enough, Sam's health is reduced to 1HP. Using a skill advances your next action by 25%.

Firefly Type IV: Death Star Overload

Emboldening Salvo "Firefly Type-IV: Death Star Overload" || Explosion

Restores health equal to 25% of max. Sam's HP. Before hitting, inflicts fire vulnerability on enemies for 2 turns and deals fire damage equal to (0,2 * penetration effect + 100-250%) from Sam's attack power. At the same time, deals fire damage to adjacent targets equal to (0,1 * penetration effect + 50-125%) from Sam's attack power. A maximum of 360% of the penetration effect is taken into account.

Firefly Type IV: Complete Combustion

Superpower "Firefly Type-IV: Complete Combustion" || Strengthening (Energy: 240)

Upon entering the Full Combustion state, Sam's action advances by 100% and his base attack and skill are changed to the enhanced Pyrogenic Decimation and Death Star Overload. The countdown for exiting the “Full Burn” state is displayed on the action sequence panel and has its own fixed speed (70 units). While in a stance, you cannot use your superpower again.

Complete combustion:

• Sam's speed increases by 30-75 units;
• the penetration efficiency of an enhanced skill and basic attack increases by 50%;
• Vulnerability damage received by targets from an enhanced skill and basic attack is increased by 10-25%.

Passive skills

Firefly's passive skills include a talent that is aimed at increasing her survivability.

Fire core of cocoon

Talent "Fire Core of the Cocoon" || Protection

The lower the current health value, the less damage Sam takes. When HP is below 20%, damage reduction reaches maximum value 20-50%. In the Full Burn state, the reduction in damage taken is always equal to its maximum, and resistance to effects is increased by 10-40%. If the energy is below 50% at the start of the battle, the superpower energy bar is filled to 50%. As soon as the energy reaches its maximum, all negative statuses are removed from Sam.

The order of leveling abilities

Superpower > Skill = Talent > Basic Attack

The overwhelming majority of the heroine’s damage is penetration and “super penetration” damage, for which it is important to level up ultimate. Accordingly, you can spend resources on Firefly’s other attacking skills at will. Upgrading the talent is necessary if the team does not have a healer or shield member.

Tracks

All traces of Firefly:

The final increase for each characteristic:

• penetration effect - 37,3%;
• resistance to effects - 18%;
• speed - 5 units.

Eidolons

Let's consider all the Firefly constants:

Firefly's best eidolons are E1, E2 и E6:

• First eidolon aimed at increasing damage and reducing the consumption of command skill points. Due to the constant progression of the action, increased speed and the need to use the skill, the girl wastes a significant part of the command resource in her normal state and in the ultimate stance.
• Second eidolon is the strongest, as it creates the opportunity to perform two actions in a row. Provided that the heroine is in the “Full Burning” stance and has broken through a vulnerability or completely destroyed the enemy, she can make an additional attack. Given the high efficiency of penetration and the constant imposition of weakness to one's element, in a battle scenario with a large group of enemies one can get quite a few consecutive turns.
• Sixth Eidolon in general, it increases all damage dealt by ignoring enemy fire resists. In addition, in addition to the initial 50% penetration efficiency, the heroine receives another +50%, which has a positive effect not only on reducing durability, but also on damage from the “Module β: Instant Armor” trail.

For F2P players, it is not recommended to go beyond the first two eidolons.

How to Play Firefly: Rotation

Firefly in Hankai: Star Rail focuses on damage and penetration in the enhanced state of "Full Combustion". The heroine's transition to a stance is helped by a skill that fills the energy of the super ability by 50%, while the basic attack is only needed to restore skill points.

While in "Full Burnout", gains updated abilities with high durability bar reduction and damage, significantly increases own speed and can deal "super penetration damage". In addition, the skill begins to damage the area and impose a fire type of vulnerability on enemies.

Based on the characteristics of skills in stances, Firefly’s rotation is based on the following principle:

1. If there are penetration effect buffers in the squad, use the Harmony Pathfinder and Ruan Mei techniques before launching Sam.
2. Thanks to the Pyronexus Shell talent, Sam's ultimate energy is always half full at the beginning of the battle. On your turn, use a skill to fully charge your superpower.
3. Wait until all supports activate buffs and ultimates.
4. Use your ultimate and get 100% action progression. Perform a skill attack to apply a fire weakness to an area and remove most of the vulnerability bar.
5. In the next turns, when choosing between a basic attack and an E0 skill, proceed from the needs of the team so as not to go into a deficit of skill points. With E1, the enhanced skill does not consume command action points.
6. After exiting the Full Burn state, use the skill in the next two turns to repeat the rotation from step #3.

Advantages and disadvantages of Firefly

Having considered the entire set of active and passive abilities, we can draw the following conclusions about the advantages and disadvantages of the character:

Upgrading Firefly in HCP

In the section you can find a complete list of consumable resources for Firefly, which will be required to increase the level, tracks and talents.

Elevation materials

Level of	Material 1	Material 2	Material 3
30	Credits ×4 000	Pieces of Thoughts ×5
40	Credits ×8 000	Pieces of Thoughts ×10
50	Credits ×16 000	Fragments of impressions ×6	Burning Heart ×3
60	Credits ×40 000	Fragments of impressions ×9	Burning Heart ×7
70	Credits ×80 000	Wishing Shards ×6	Burning Heart ×20
80	Credits ×160 000	Wishing Shards ×9	Burning Heart ×35

Total amount of materials for upgrading Firefly to level 80:

• Burning Heart (×65) - reward for the Stagnant Shadow challenge in Morning Dew Residences;
• pieces of thoughts (×15), fragments of impressions (×15), fragments of wishes (×15) is a resource dropped from Memes in the memory zone on Penaconia and "virtual universe"Additional ways to obtain: completing tasks, synthesizing resources, reward for completing "Sepal (gold)", purchase for Everlasting Ash;
• loans (×1 690 000);
• traveler's guide (×290) or adventure journal (×1 160).

In addition, you will need character experience materials: Traveler's Guide (×289); adventure journal (×6); meeting while traveling (×16).

Skill Leveling Materials

Emboldening Salvo	Material 1	Material 2	Material 3	Material 4
Basic Attack: Order: Flame Charge	Credits ×240 000	Pieces of Thoughts ×6 Fragments of impressions ×7 Wishing Shards ×7	Teeth of Borisin residents ×3 Lupotoxic Fangs ×8 Fangs of Lunar Beast ×11
Skill "Order: Air Bombardment"	Credits ×652 500	Pieces of Thoughts ×9 Fragments of impressions ×13 Wishing Shards ×7	Teeth of Borisin residents ×3 Lupotoxic Fangs ×15 Fangs of Lunar Beast ×30	Imprints of Destiny ×2 Lost echo of unity of desires ×3
Superpower "Firefly Type-IV: Complete Combustion"	Credits ×652 500	Pieces of Thoughts ×9 Fragments of impressions ×13 Wishing Shards ×7	Teeth of Borisin residents ×3 Lupotoxic Fangs ×15 Fangs of Lunar Beast ×30	Imprints of Destiny ×2 Lost echo of unity of desires ×3
Talent: Cocoon Fire Core	Credits ×652 500	Pieces of Thoughts ×9 Fragments of impressions ×13 Wishing Shards ×7	Teeth of Borisin residents ×3 Lupotoxic Fangs ×15 Fangs of Lunar Beast ×30	Imprints of Destiny ×2 Lost echo of unity of desires ×3

To upgrade Firefly's skills, the following number of consumable components is required:

• pieces of thoughts (×33), fragments of impressions (×46), fragments of wishes (×28);
• teeth of Borisin residents (×12), lupotoxic fangs (×53), fangs of lunar brutality (×101) — reward for completing the “Sepal (crimson)” test in Scaly Gorge;
• lost echo of unity of desires (×9) - reward for winning weekly activity "Echoes of War: A Tribute to the Politeness of Mortal Dreams";
• imprint of fate (×6) - a rare material for upgrading traces, which can be obtained by increasing levels Battle Pass, a collection of points in the “Virtual Universe”, as well as in exchange for Unquenchable Ash in the in-game store;
• loans (×2 197 500).

The sequence of pumping traces

Next	Material 1	Material 2	Material 3	Material 4
Penetration effect +5,3%	Кредиты ×2 500	Pieces of Thoughts ×2
"Module α"	Кредиты ×5 000	Teeth of Borisin residents ×3	Lost echo of unity of desires ×1
Status Resistance +4%	Кредиты ×5 000	Teeth of Borisin residents ×3	Pieces of Thoughts ×6
Penetration effect +5,3%	Кредиты ×10 000	Lupotoxic Fangs ×3	Fragments of impressions ×3
Speed ​​+2	Кредиты ×10 000	Lupotoxic Fangs ×3	Fragments of impressions ×3
"Module β"	Кредиты ×20 000	Lupotoxic Fangs ×5	Lost echo of unity of desires ×1	Imprints of Destiny ×1
Penetration effect +8%	Кредиты ×20 000	Lupotoxic Fangs ×5	Fragments of impressions ×4
Status Resistance +6%	Кредиты ×45 000	Fangs of Lunar Beast ×3	Wishing Shards ×3
Penetration effect +8%	Кредиты ×45 000	Fangs of Lunar Beast ×3	Wishing Shards ×3
"Module γ"	Кредиты ×160 000	Fangs of Lunar Beast ×8	Lost echo of unity of desires ×1	Imprints of Destiny ×1
Speed ​​+3	Кредиты ×160 000	Fangs of Lunar Beast ×8	Wishing Shards ×8
Status Resistance +8%	Кредиты ×160 000	Fangs of Lunar Beast ×8	Wishing Shards ×8
Penetration effect +10,7%	Кредиты ×160 000	Fangs of Lunar Beast ×8	Wishing Shards ×8

To learn Firefly's hidden skills, represented by the tracks, you will need:

• pieces of thoughts (×8), fragments of impressions (×10), fragments of wishes (×30);
• teeth of Borisin residents (×6), lupotoxic fangs (×16), fangs of lunar brutality (×38);
• lost echo of unity of desires (×3);
• imprint of fate (×2);
• loans (×802 500).

Best Firefly Builds in Honkai: Star Rail

Firefly in HSR follows a playstyle of breaking through enemies' toughness bars and then dealing "super penetration damage." The ability to attack with this type of damage is provided in the “Complete Burning” state, which can be entered after activating the ultimate. Despite the high cost of the superpower, there is no need to collect energy recovery speed: the girl accumulates all 240 units of energy in two uses of the skill. After the transition, penetration efficiency, speed parameter and penetration damage increase.

Accordingly, in order to understand how to assemble a Firefly in the XSR, it is necessary to consider the needs of the damage dealer in both regular and reinforced stances. To go into the “Full Combustion” state, you need to wait in line and use the skill, so you will need to level up speed for more frequent actions. When standing up, a girl needs a high value penetration effect, since “super penetration damage” depends on this parameter. The characteristic is pumped directly through relics and cones, as well as through the “Module γ: Core Overload” track, which needs Attack Power.

Since crit. chance and crit. damage does not affect the damage of penetration and “super penetration”, they are not priority parameters. These characteristics affect the direct damage of abilities and complicate the balance of stats, so it is more advisable to direct forces to build an assembly and a squad from breaking through the vulnerability. As for survivability, through traces and talent Sam receives high resistance to effects, so it is additionally recommended to collect only health and defense.

Recommended characteristic values

Main characteristics of cave relics and planar jewelry:

Below are the characteristics to look for in relic parts:

• penetration effect;
• Attack Power;
• speed;
• HP/Def.

Optimal final values ​​of all indicators:

• penetration effect (EP): bring to 250% or, ideally, to 360% to activate the "Beta Module" trace and the "Iron Cavalry" set passive;
• Attack Power: from 2;
• speed: 143-150 units. excluding the ultimate buff;
• health: from 2 units and above.

How to collect 360% of the Firefly penetration effect

Since the penetration effect is the most important characteristic in the damage dealer build, let’s take a closer look at the ways to set a high parameter value:

• Trace studies: 37,3%.
• Iron Cavalry Cave Relics: 16%.
• Planar decorations "Lotus Lantern of the Palace": 40%.
• Connecting rope: 64,8%.
• Ruan Mei: 20% (traces).
• Pathfinder (Imaginary): 52,5% (EP 150%, E4, active ultimate level 10) or Fugue: 60% (trace "Essence of Phecda" and skill).
• “Watchmaker of Sleepy Shenanigans” on support: 30%.
• Light cone, body and sphere on attack power, trace "Gamma module": "Where dreams should rest" R1 - 93,3%; “On the Fall of an Aeon” R5 – 95%.

Сonclusion: 353,9-355%.

For further pumping, you need to look for the penetration effect and attack power as a percentage in the lower parts of the relics. Additional sources include the Pioneer (Imaginary) with the ability to pump up characteristics up to 300%, as well as third-party bonuses that can be implemented through the equipment of Harmony characters.

Ultimate Light Cone [Weapon]

Firefly weapons must be Path of Destruction. Otherwise, the heroine will not be able to activate the effects of her passive ability, but will only receive increases to the basic characteristics of attack power, defense and health.

As for bonuses in the Light Cone skill, the options for increasing are suitable penetration effect or attack power. The Firefly signature is desirable in this case, as it gives a high “net” increase to the key stat and enhances the damage of the mechanics through which the girl plays. However, among the weapons you can find no less worthy alternatives:

light cone	Description	Recommendation
Where do dreams return? ⭐⭐⭐⭐⭐ HP 53-1164 ATK 22-476 DEF 24-529	The wearer's penetration effect is increased by 60-100%. When the owner inflicts penetration damage on the target, the “Defeat” status is applied for 2 turns. Enemies with this effect receive 24-40% more penetration damage from the owner, and their speed is reduced by 20%. Effects of this type cannot stack.	Firefly's signature light cone offers the damage dealer a boost to the core mechanics through significant increases to the penetration effect and negative status on enemies. At the first level of application, the weapon provides a high increase in characteristics without additional conditions. In the process of fighting monsters, the heroine easily activates the second part of the passive effect, increasing the damage of penetration and “super penetration”.
On the Fall of an Aeon (F2P) ⭐⭐⭐⭐⭐ HP 48-1058 ATK 24-529 DEF 18-396	When the wielder hits with any skill, the weapon increases their attack power by 8-16% in this battle (the effect stacks up to 4 times). When breaking through an enemy's vulnerability, the damage increases by an additional 12-24% for 2 moves.	Armament from "Gertha's Store" is a worthy competitor, provided that the overlay level is pumped to the maximum. Due to the increased base at the beginning of the battle, Sam has a good attack power value, but to fully boost his characteristics, he will need to carry out 4 hits. After accumulating all the stacks of the first part of the passive, the value of the penetration effect is achieved, similar to the signal.
A promise kept in the heart (H5) ⭐⭐⭐⭐ HP 43-952 ATK 22-476 DEF 15-331	The penetration effect is increased by 28-56%. When the owner uses a superpower, his crit. chance increases by 15-30% for 2 moves.	An alternative option that can be used to boost the penetration effect to optimal values. As an additional effect, it increases crit. a chance, which, however, is not a priority for the damage dealer.
Something Irreplaceable ⭐⭐⭐⭐⭐ HP 52-1164 ATK 26-582 DEF 18-396	Increases the wearer's attack power by 24-40%. When the wearer defeats an opponent or receives an attack, immediately restores HP equal to 8-12% from attack power. At the same time, the wearer's damage is increased by 24-40% until the end of the next turn. The effect does not stack and only occurs once per turn.	Alternative Light Cone for attack power. Since the damage dealer consumes a lot of health during the battle, the passive effect of the weapon will serve as a “safety net” for her in cases where the healer’s skill is not yet ready or the squad is composed without defensive support. The damage buff, in turn, will not affect the girl’s DPS in any way, because such an increase does not affect the damage from penetration and super penetration.
Nowhere to run (H5) ⭐⭐⭐⭐ HP 43-952 ATK 24-529 DEF 12-264	Increases attack power by 24-48%. When the owner defeats an opponent, he recovers 12-24% own HP.	The weapon seems like a good epic option due to its increased base attack power. The second part, in turn, the damage dealer will not need, since her own skills help regenerate health without any conditions. Can be equipped strictly at the level of application H5.
The Moles Welcome You  ⭐⭐⭐⭐ HP 48-1058 ATK 21-476 DEF 12-264	Using a basic attack, skill, or superpower grants one level of Mischief. Each level increases attack power by 12-24%.	A good epic option that can be used when building a build. For a set of max. the number of stacks, it is necessary to use a basic attack as one of the actions, for example, at the beginning of a battle before activating the ultimate.
Woof! Walk Time! (F2P) ⭐⭐⭐⭐ HP 43-952 ATK 21-476 DEF 15-330	Increases attack power by 10-20%, also gives an increase in damage dealt to enemies with the “Burning” and “Bleeding” status by 16-32%. This effect also applies to damage over time.	Free light cone from the in-game store. In the absence of the above options, this is an acceptable replacement.

Best relics

Like weapons, artifacts for Firefly are aimed at enhancing a key characteristic penetration effect and alternative parameter attack power. Since the penetration mechanics are enhanced by cutting and breaking through defenses, you can additionally consider specialized kits for ignoring resists.

Cave relics [main artifacts]

Name	Description	Recommendation
Iron cavalry against the invasion	2 parts: Increases penetration effect by 16%. 4 parts: Penetration damage ignores 10% of the target's defense if the penetration effect is equal to or greater than 150%. When the pierce effect exceeds 250%, the wearer's super pierce damage ignores the additional 15% defense.	The best set of Cave Relics, combining everything a damage dealer needs. Provides Sam with an increase in the most important characteristic that must be collected from any sources. Since penetration and super penetration damage is affected by the state of the enemy's defense, ignoring resists also has a positive effect on the main source of DPS.
Thief of Shooting Meteor	2 parts: Increases penetration effect by 16%. 2 parts: Increases penetration effect by 16%. When the owner breaks through the enemy's vulnerability, restores 3 units. energy.	For the heroine, the set is a full-fledged analogue of the assembly in the (2 + 2) format. In addition to +32% of the parameter, the set gives energy after the destruction of the resistance bar, but the damager most often breaks through vulnerabilities in the ult, where the energy gain is blocked. In addition, the cost of the superpower is 240 units and is easily gained through the implementation of the optimal rotation.
The Genius of the Diamond Stars	2 parts: Increases quantum damage by 10%. 4 parts: When the wearer deals damage to the target enemy, ignores 10% defense. If the targeted opponent has a Quantum Vulnerability, the owner ignores an additional 10% Defense.	The available set for ignoring defense will help with increasing damage, but will not provide the heroine with additional bonuses to the penetration effect. The set is also not a universal solution, since it requires the presence of quantum vulnerability in enemies to achieve the maximum effect. However, due to the power of the effect, it is an excellent alternative to the previous relics.
Iron cavalry against the invasion Thief of Shooting Meteor / Watchmaker of sleepy shenanigans	2 parts: Increases penetration effect by 16%. 2 parts: Increases penetration effect by 16%.	While the full Iron Cavalry set is being assembled, penetration sets can be combined with each other to gain 32% of the stats. Good parts of the relics can later be equipped on other characters with similar mechanics.
Iron Cavalry / Thief of Shooting Meteor / Watchmaker of sleepy shenanigans Herald wandering in hacker space	2 parts: Increases penetration effect by 16%. 2 parts: Increases speed by 6%.	It is advisable to use the assembly in cases where speed is critically lacking. In the future, it is recommended to replace it with the “Iron Cavalry”.

Planar Ornaments [Additional Artifacts]

Name	Description	Recommendation
Lotus Lantern Palace	2 parts: Increases speed by 6%. When the wearer attacks a target with a fire vulnerability, the penetration effect is increased by 40% for 1 turn.	A set that can be considered a signature due to the compatibility of the effects with the needs of the heroine and the convenience of the activation method. As a main effect, it increases speed, and when striking monsters with fire weakness, it significantly increases the main characteristic. The girl’s skills, in turn, contain the ability to inflict vulnerability to her element, so she can maintain the effect throughout the entire battle.
Thalia - the land of bandits	2 parts: Increases penetration effect by 16%. At a speed of 145 units. or higher, the penetration effect is increased by an additional 20%.	Jewelry with a total increase of 36% to the penetration effect can be equipped “for the first time.” When the superpower is fully upgraded in the “Full Burning” state, the speed increases to 164 units, which fully satisfies the requirements of the kit.
Space Sealing Station	2 parts: Increases attack power by 12%. At a speed of 120 units. or more is given an additional bonus to attack power in the form of 12%.	A starting alternative for attack power is suitable for beginners. As soon as you have access to World 10 of the “Virtual Universe”, it is recommended to start farming the “Lotus Palace Lantern”.
Skyfront Glatiramer	2 parts: Increases attack power by 12%. If the speed is higher than or equal to 135/160 units, then the damage dealt increases by 12%/18%.	It is also an alternative option for attack power, but with a smaller increase. The increase in damage of the second part of the passive applies exclusively to direct damage of skills. Can be used with good parts, for example, if you cannot find a rope with a penetration effect from a more suitable set.

Squads for Firefly

In HSR, Firefly plays on specific mechanics related to reducing the vulnerability scale and inflicting “super penetration damage” on enemies in a state of destroyed stamina. Because of this feature, it requires narrowly targeted supports for the penetration effect in the team, but plays well with classic buffers of attack power and speed. Throughout the battle, it imposes a weakness to the fire element on enemies, which opens up the possibility of building a mono-fire group with sub-dampers and secondary damage dealers of this element. In turn, both shield warriors and healers are equally suitable for the defensive support slot.

Best characters

Let's look at the heroes with whom you can form strong teams:

Character	Damage Path and Type	Features
Pioneer	Harmony Imaginary	He is the best partner for the Stellaron Hunter, playing in similar mechanics. Not only does it help gain an additional penetration effect, but it also makes it possible to deal several hits with “super penetration damage”, which the damage dealer specializes in. Also friendly towards action points.
ruan mei	Harmony Ice	A universal support that increases the effectiveness of breaking through any groups. This ability has a positive effect on “super penetration damage”, which is provided through the “Module Beta” trace. In addition, the buffer increases the team's speed and penetration effect, and also prevents enemies from restoring their stamina bar.
Zaryanka	Harmony Physical	Representative of Harmony, increasing the attack power of the entire team. Works best with characters who perform a lot of actions per battle cycle, so it works well with the high-speed Sam. If Sam has E2 open, the connection becomes even more powerful.
Tribby	Harmony Quantum	The Amphoraeus Envoy increases the penetration of all resistance types and the damage taken by enemies, which allows her to interact well with the Firefly. At the same time, it is advisable for Tribby to have partners who hit the area in order to charge the ult faster. The Stellaron Hunter, as a rule, attacks several targets and gathers through speed, thereby restoring the energy of the Envoy on a stable basis.
Asta	Harmony Fiery	The free support heroine creates good synergy with the damage dealer. To maintain stacks, Asta needs to attack enemies with fire vulnerability, which is easily accomplished with Sam’s skills. In return, the girl buffs her attack power and speed.
Hanja	Harmony Physical	Support, which is most often used in groups with a serious lack of skill points. The ultimate speeds up one ally and enhances his attack - buffs will be useful to the damage dealer in any stance.
Linsha	Abundance Fiery	A support with a variety of functions: heals, deals area damage and applies a weakening that increases damage from penetration. During combat, summons an assistant, which is a bonus attack. Due to this creature, it additionally heals, deals damage outside of the turn and removes debuffs.
Gallagher	Abundance Fiery	Healer and secondary damage dealer, relying on the penetration effect. Inflicts the “Dead Drunk” status on enemies, which restores health to allied heroes after performing hits, and in addition increases penetration damage.
Locha	Abundance Imaginary	A healer with instant and periodic healing. Creates a “Magic Circle” on the battlefield, thanks to which allies receive portioned healing after performing attacks. The skill removes weakening, and with the ultimate it does a good job of breaking through enemy resistance in an area.
Bailu	Abundance Электрический	Legendary healer from the standard banner. The ultimate heals the entire team and imposes the “Cheerfulness” status, which regenerates health when damaged. The skill launches a healing skill that bounces from one ally to another.
Hoho	Abundance Wind	Healer with periodic and mass healing. Thanks to his talent, he constantly heals his teammates and removes negative effects from them. The superpower buffs attack power by 24-40%.
Lynx	Abundance Quantum	High-class epic healer with instant and periodic healing. The skill heals one ally, increases the maximum health and the likelihood of being attacked if the character belongs to the Path of Preservation and Destruction. The ultimate instantly heals the squad and removes all weakening.
Natasha	Abundance Physical	Starting healer. With the skill, it removes weakening from one ally and imposes a status on periodic healing, and with its superpower, it regenerates health for all group members.
Fu Xuan	Preservation Quantum	A strong defensive support that redirects most of the damage received by allies to itself. In addition, it increases health, helps avoid crowd control effects, and deals ultimate damage.
Aventurine	Preservation Imaginary	A shield fighter and a secondary damage dealer that relies on a bonus attack. Does not remove weakening, but significantly increases the resistance to the effects of all allies, allowing you to avoid most of the negative statuses imposed by enemies.
Cheetah	Preservation Ice	Support with the ability to impose the Freeze status on opponents. The ultimate protects all heroes in the group with strong shields that absorb incoming damage for three turns.
Pioneer	Preservation Fiery	A support hero and a secondary source of damage and penetration. Distracts the attention of enemies to yourself, and also applies shields with all skills. Can be used until the Path of Harmony is unlocked.
March 7	Preservation Ice	Free support for the prologue. Covers one of the allies with a shield for several turns, increases his chance of being attacked and carries out counterattacks in response to enemy attacks. Considering the peculiarity of Sam's HP reduction in the basic stance, the girl's shields will come in handy in the group.
Boothill	Hunting Physical	Like Firefly, he plays from breaking through the vulnerability and is in squads with similar support-buffers. Due to the lack of AoE damage, she may need the support of an area damage dealer, which is the girl.
Dan Heng	Hunting Wind	A hero who plays well as a secondary damage dealer due to the low cost of his superpower. The skill can slow down enemy targets, and also penetrates wind vulnerability well.
March 7	Hunting Imaginary	A secondary damage dealer who, using a skill, applies the positive effect “Mentor” to the selected ally. It does good damage, and may well occupy the role of the main combat unit in a squad. In addition, it further strengthens itself, advancing the action and increasing outgoing damage. With the acquisition of eidolons, it gains mechanics related to performing bonus attacks.
Pioneer	Destruction Physical	Starting character of the damage-dealing Path. Universal at the initial stages of Mastery, it deals good damage to single targets and in an area, and also reduces the stamina bar well.
jingliu	Destruction Ice	A strong damage dealer who relies on damage while in the “Spectral Transmigration” state. Standing strikes do not cost skill points, so the Ice Swordsman plays well in builds with several DPS characters.
Blade	Destruction Wind	Primary and secondary damage dealer. Once every 4 turns, it spends skill points to enhance the basic attack to the “Hellscape” skill, so it is often used as a secondary source of damage.
Clara	Destruction Physical	A damage dealer who diverts the attention of enemies to herself. In response to enemy attacks, it carries out bonus attacks, due to which it copes well with the onslaught of numerous groups of opponents.
Yunli	Destruction Physical	Specializes in launching a counterattack when receiving incoming damage. Due to this, it protects allies and consistently damages out of turn, practically without consuming skill points, which is very useful for Firefly.
Xueyi	Destruction Quantum	Quantum minor-DPS with the need for high durability penetration by party members. In a team with Sam, he will be able to quickly accumulate Karma levels and often carry out a bonus attack. Additionally, depends on the stat of the penetration effect and will benefit from support buffs.
Arlan	Destruction Электрический	A damage-dealing hero who consumes his health when using a skill. As the HP bar decreases, the damage increases, so it plays best with tanks. Due to the undemanding nature of skill points, he is good at the sub-DD position.
Misha	Destruction Ice	Ultimate sub-deader that gains additional super charges when allies use skill points. Freezes enemies and deals good damage to one target, and also does not require the use of a skill.
Hook	Destruction Fiery	Follower of the Destruction of the Fire Element. It plays well in a build from the penetration effect, so along with the damage dealer in question, it can implement buffs for supports. At the same time, it imposes periodic statuses and penetrates vulnerability well.
Rappa	Erudition Imaginary	Ninja from the Galactic Rangers faction plays from penetration and specializes in depleting tenacity. At the same time, she deals massive damage to all enemies on the battlefield on a stable basis with the help of the enhanced basic attack gained from the ultimate ability. If she or her allies penetrate the weakness of enemies, she accumulates charges that further increase damage.
Himeko	Erudition Fiery	A pocket damage dealer of the fire element with a mechanic that works by breaking through a vulnerability. It will fit perfectly into the Stellaron Hunters group if the upcoming battle is expected to involve a large group of opponents.
Hertha	Erudition Ice	An epic heroine of the Path of Erudition, whose bonus attack is activated when the enemy’s health is reduced to half. Because of this feature, it copes poorly with bosses and elite opponents, but performs well against large waves of weak enemies.
Serval	Erudition Электрический	Sub-dead with an ultimate that inflicts a periodic “Shock” status on opponents. Like all representatives of its class, it is aimed at damage and penetration across the entire area of ​​the battlefield.
Fugue	Nihility Fiery	A debuffer that fits perfectly into squads against reducing durability. Thanks to the status "Fox's Prayer" and the third trace, it increases the effect of penetration, and also has the ability to reduce defense. Although the ignoring of vulnerability, which Fugue has in its arsenal, is not required by Firefly, it can still bring a lot of benefit and offer sought-after bonuses.
sang	Nihility Ice	A representative of the Path of Nothingness, specializing in reducing area defense. Since this debuff increases penetration damage, it is a good epic support for the Stellaron Hunter team.
Jiaoqiu	Nihility Fiery	As a debuff-focused hero, he increases the damage taken by enemies with the Burning Ash debuff, and allows allies to deal more damage with their ultimates when he creates a special zone with his ultimate.
Welt	Nihility Imaginary	Damage-dealing character and debuffer. Great for reducing imaginary durability, slowing down enemies, and can inflict the Imprisonment status.
Silver Wolf	Nihility Quantum	A strong debuffer with many useful skills. For Sam, it offers a powerful cut of defense to one target, as well as negative statuses to reduce attack power and speed. At E2 it is going to be a critical build or penetration, but in view of the corresponding supports in the squad, it does not need to adjust the build to deal good damage.

Top Teams

The best units for Firefly always include Ruan Mei and Pathfinder (Imaginary), but there are other viable alternatives:

Character 1	Character 2	Character 3	Character 4	Features
Firefly	Imaginary. hero Fugue	ruan mei	Linsha Gallagher	Firefly's strongest group with key supports: The Pathfinder of Harmony gives out bonuses to the penetration effect for all heroes in the pack. The ultimate imposes the “Reserve Dancer” status, allowing you to deal several hits with “super penetration damage.” Instead of GG, you can install the debuffer Fugu. It has almost the same functionality, but in addition it reduces defense and deals damage in an area, ignoring enemy weaknesses. Ruan Mei increases penetration efficiency and speed, and prevents enemies from breaking out of the vulnerable state in which most damage is dealt. Linsha or Gallagher increase the damage from the team mechanic, heal well and bring additional damage. It is recommended to use the “Watchmaker of Sleepy Machinations” set on one of the supports, and with the help of the other, boost the speed with “Herald”. Heroes can also use the Palace Lotus Lantern decorations, which increase the penetration effect after hitting enemies with fire vulnerability.
Firefly	Ruan Imaginary. hero	Asta March 7 False. Zaryanka	Aventurine March 7	A group with damage dealers who buffer attack power. If Harmony's Pathfinder or Ruan Mei is already used in another group, Asta, Robin or March 7 of the Hunt's Path can be used in place of the second Harmony representative, as she can increase the penetration effect. The Lead Explorer creates good synergy with Sam and plays well in the penetration mechanic, and the Galovian singer deals impressive damage on her own. Shielders with bonus attacks are suitable for the last slot.
Firefly	Fugue Asta Imaginary. hero	Himeko Hook	Locha Hoho	A squad with fire damage dealers Hook or Himeko. "Stellaron Hunter" imposes vulnerability to fire in an area and reduces durability well. As support, you can use Fugu or Asta with the same element, and also strengthen the team with the skills of Harmony Pathfinder. Hook is recommended against single targets, while Himeko will successfully cope with a group of enemies. Hoho will pour additional attack power, and Locha will provide free healing.
Firefly	Boothill Rappa Xueyi	ruan mei Silver Wolf	Linsha Gallagher Imaginary. hero	A group that plays with a pierce effect. Firefly takes the main position, while Boothill or Rappa help with additional damage. These heroes can be replaced with a more budget Xueyi, who relies on piercing allies. Ruan Mei or Silver Wolf spread (de-)buffs, and Lingsha or Gallagher heal and increase pierce damage. If an easy fight is expected, where you can win without serious health losses, the healer can be replaced with an additional buffer.
Firefly	jingliu Blade Yunli	Tribby Hanja	Fu Xuan Lynx	A squad with DPS characters of the Path of Destruction. Jingliu, Blade and Yunli have low skill point costs, so they play well in builds with several representatives of damage-dealing classes. Hanya increases the damage done by skills, and also increases the speed and attack power of the main damage dealer. Can be replaced by Tribby with buffs that apply to all allies. Fu Xuan or Lynx is put in place of the defensive support.
Firefly	sang Jiaoqiu Tribby	Hoho Gallagher	Clara Yunli	A squad where Clara or Yunli distract enemy attacks. As a (de-)buffer, Pela with a defense cut in an area, Jiaoqiu with an increase in the damage of the ult by imposing a weakening or Tribby with a buff for the whole team are suitable. Hoho with an attack power buff and constant cleansing from negative statuses is recommended as a healer. In the absence of the girl, Gallagher with healing from attacks is suitable.
Firefly	Himeko Welt	Hertha Serval Misha	Bailu Cheetah	A team with secondary damage dealers of various elements. The group can use a strong combination of Himeko and Gerta/Serval, which works great in modes and battles with a constant influx of enemies. In the fight against the boss, the girls can be replaced by Velt and Misha with a large number of hits on one target and control statuses. Baylu or Cheetah are responsible for the survivability of the team.

Offering for consideration a detailed guide to Firefly in Honkai: Star Rail, one cannot help but dwell on F2P packs consisting of starting and epic characters. Below you can see examples of groups with 4⭐ heroes:

Character 1	Character 2	Character 3	Character 4	Features
Firefly	March 7 False. Asta sang	Imaginary. hero	Gallagher Natasha	A build of epic characters, not inferior in compatibility and buff power to legendary combinations. March 7 (Hunt) - deals damage and applies useful buffs, including increasing the penetration effect, Asta throughout the battle spreads attack and speed increase to allies, Pela - reduces the defense of enemies with the ultimate. The protagonist of the Path of Harmony is economical with skill points and maintains an active ultimate with many useful properties. Gallagher is the best of the available healers in the penetration build, but in the absence of it can be replaced by Natasha.
Firefly	Hanja Asta	Gallagher Natasha	Fire Hero March 7 Ice.	A team with high survivability thanks to a shield and healer. March 7 or Pathfinder Saves focus on protecting allies with barriers, while simultaneously removing durability with blows. Gallagher or Natasha heals damage and removes negative effects. Depending on the direction of the buffs, Chanya with buffs of one ally or Asta will be suitable.
Firefly	Hook Serval Dan Heng	Xueyi Arlan Phys. hero	Lynx	An epic group with several DPS heroes. Along with the main damage dealer, sub-DD Hook, Serval or Dan Heng actively spend skill points to accumulate super ability energy. At this time, Xueyi relies on penetrating squad members, Arlan helps save skill points, since he does not consume them, and Pathfinder effectively reduces durability if enemies have physical vulnerability. Lynx provides the squad with instant and gradual healing.

Is it worth knocking out Firefly in Honkai: Star Rail?

Firefly is a representative of the Path of Destruction with a fire element. In battle, he relies on the enhanced state of Sam's combat armor, in which the vulnerability of enemies is more effectively penetrated and the opportunity to attack with “super penetration damage” appears. A key advantage that ensures comfortable gameplay in any circumstances is the ability to inflict vulnerability on enemies to an element of its type. Due to its independent gameplay, it can act as both a primary and secondary damage dealer, gathering mono-elemental groups around itself. However, it demonstrates its greatest effectiveness in specialized builds focused on penetration mechanics.

Path of Destruction DPS characters are in high demand when completing a variety of content, so knocking out Firefly is worth it for those who want to get a universal damage dealer. The heroine differs from representatives of her class in her independence in any battle scenario due to her independent vulnerability and increased resistance penetration. Despite the high compatibility with the limited legendary ruan mei, can form equally strong squads with epic alternatives. This also applies to the signature light cone, which is not much inferior to F2P weapons "On the Fall of the Aeon".

Which is better for Firefly: Signa or E1

The first eidolon seems to be a better investment than a signature weapon. In "Full Combustion" state speed the heroine effortlessly reaches 200 units. with fully upgraded boots for speed, tracks and superpowers. In this case, before the counter goes off, you can perform up to 4 actions - alternate between a basic strike and a skill, or use up most of the team skill points. With the first eidolon, the enhanced skill can be used constantly, since it does not consume action points, in addition, it ignores the enemy’s defense.

The advantage of the light cone lies in the high increases in penetration effect and increasing the damage of the corresponding mechanics. However, the Gamma Module trail offers an alternative way to gain the main stat through attack power. In such a situation, you can find a worthy replacement for signature weapons, compensating for the less beneficial passive by increasing the damage with the eidolon.

Knock out Ruan Mei or E1?

ruan mei is a valuable acquisition for the account and a priority support in Firefly groups, therefore it is eliminated first. Buffer gives the group important characteristics of speed and penetration effect, but, most importantly, increases the penetration efficiency by 50% and does not allow enemies to restore stamina. Scientist is friendly to skill points, so will help compensate for the lack of the first duplicate.

After getting the buffer, you can target Firefly's eidolons 1 and 2, which greatly simplify turn-based combat. Investments such as E1 Ruan Mei and Firefly's sign are equivalent for the group, so the choice can be made in favor of any of the heroines.

Achievements with Firefly

There is one achievement associated with the character:

• I... will make the seas burn! - Use Firefly IV: Death Star Overload 4 times before Sam's Total Burnout status ends in a single battle. Reward: star jade ×5. To unlock the achievement, you need to use the enhanced skill 4 times while the effect of the superpower is active.

We hope our guide helped you put together the best Firefly build in Honkai: Star Rail. IN comments ask any questions about the character so that the author or other players can help. Follow useful articles on HSR in the relevant sections of our website: passing, guides, builds, ENT, news.

Firefly trailer in XSR

Questions and answers about Firefly in HSR