Firefly — Honkai: Star Rail

Build recommendations

Best light cones

Best relics

Best planar ornaments

Best stats & substats

Best stats

Body: ATK%:
Feet: Speed:
Planar sphere: ATK%:
Link rope: Break Effect:

Best substats

Priority 1: Speed
Priority 2: Break Effect
Priority 3: ATK%
Priority 4: Any

Skills

Basic ATK Order: Flare Propulsion

Enable JavaScript to change skill level. Showing level 1 values.

Deals Fire DMG equal to 50% of SAM's ATK to one designated enemy.

Skill Order: Aerial Bombardment

Enable JavaScript to change skill level. Showing level 1 values.

Consumes HP equal to 40% of this unit's Max HP and regenerates a fixed amount of Energy equal to 50% of this unit's Max Energy. Deals Fire DMG equal to 100% of SAM's ATK to one designated enemy. If the current HP is not sufficient, reduces SAM's HP to 1 when using this Skill. Advances this unit's next Action by 25%.

Ultimate Fyrefly Type-IV: Complete Combustion

Enable JavaScript to change skill level. Showing level 1 values.

Enters the Complete Combustion state, advances this unit's Action by 100%, and gains Enhanced Basic ATK and Enhanced Skill. While in Complete Combustion, increases SPD by 30, and when using the Enhanced Basic ATK or Enhanced Skill, increases this unit's Weakness Break Efficiency by 50% and increases the Break DMG dealt by SAM to the enemy targets by 10%, lasting until this current attack ends. A countdown timer for the Complete Combustion state appears in the Action Order. When the countdown timer's turn starts, SAM exits the Complete Combustion state. The countdown timer has a fixed SPD of 70. SAM cannot use Ultimate while in Complete Combustion.

Talent Chrysalid Pyronexus

Enable JavaScript to change skill level. Showing level 1 values.

The lower the HP, the less DMG received. When HP is 20% or lower, the DMG Reduction reaches its maximum effect, reducing up to 20%. During the Complete Combustion, the DMG Reduction remains at its maximum effect, and the Effect RES increases by 10%. If Energy is lower than 50% when the battle starts, regenerates Energy to 50%. Once Energy is regenerated to its maximum, dispels all debuffs on this unit.

Technique Attack

Enable JavaScript to change skill level. Showing level 1 values.

Attacks an enemy, and after entering combat, reduces their Toughness of the corresponding Type.

Technique Δ Order: Meteoric Incineration

Enable JavaScript to change skill level. Showing level 1 values.

Leaps into the air and moves about freely for 5 seconds, which can be ended early by launching a plunging attack. When the duration ends, plunges and immediately attacks all enemies within a set area. At the start of each wave, applies a Fire Weakness to all enemies, lasting for 2 turn(s). Then, deals Fire DMG equal to 200% of SAM's ATK to all enemies.

Basic ATK Fyrefly Type-IV: Pyrogenic Decimation

Enable JavaScript to change skill level. Showing level 1 values.

Restores HP by an amount equal to 20% of this unit's Max HP. Deals Fire DMG equal to 100% of SAM's ATK to one designated enemy.

Skill Fyrefly Type-IV: Deathstar Overload

Enable JavaScript to change skill level. Showing level 1 values.

Restores HP by an amount equal to 25% of this unit's Max HP. Applies Fire Weakness to one designated enemy, lasting for 2 turn(s). Deals Fire DMG equal to (0.2 × Break Effect + 100%) of SAM's ATK to this target. At the same time, deals Fire DMG equal to (0.1 × Break Effect + 50%) of SAM's ATK to adjacent targets. The Break Effect taken into the calculation is capped at 360%.

Basic ATK Order: Flare Propulsion

Enable JavaScript to change skill level. Showing level 1 values.

Deals Fire DMG equal to 50% of SAM's ATK to one designated enemy.

Skill Order: Aerial Bombardment

Enable JavaScript to change skill level. Showing level 1 values.

Ultimate Fyrefly Type-IV: Complete Combustion

Enable JavaScript to change skill level. Showing level 1 values.

Talent Chrysalid Pyronexus

Enable JavaScript to change skill level. Showing level 1 values.

Technique Attack

Enable JavaScript to change skill level. Showing level 1 values.

Attacks an enemy, and after entering combat, reduces their Toughness of the corresponding Type.

Technique Δ Order: Meteoric Incineration

Enable JavaScript to change skill level. Showing level 1 values.

Basic ATK Fyrefly Type-IV: Pyrogenic Decimation

Enable JavaScript to change skill level. Showing level 1 values.

Restores HP by an amount equal to 20% of this unit's Max HP. Deals Fire DMG equal to 100% of SAM's ATK to one designated enemy.

Skill Fyrefly Type-IV: Deathstar Overload

Enable JavaScript to change skill level. Showing level 1 values.

Restores HP by an amount equal to 25% of this unit's Max HP. Adds Fire Weakness to one designated enemy and its adjacent targets, lasting for 2 turns. Deals Fire DMG equal to (0.2 × Break Effect + 100%) of SAM's ATK to this target. At the same time, deals Fire DMG equal to (0.1 × Break Effect + 50%) of SAM's ATK to adjacent targets. The Break Effect taken into the calculation is capped at 360%.

Passive talents

Major trace Module α: Antilag Outburst

Ascension 2

While in the Complete Combustion state, SAM's Break Effect increases by 25%. When using Enhanced Basic ATK or Enhanced Skill to inflict Weakness Break on a target, the Complete Combustion countdown is delayed by 10%. This effect can trigger a maximum of 3 time(s) during each Complete Combustion state.

Major trace Module β: Autoreactive Armor

Ascension 4

When SAM is in Complete Combustion with a Break Effect that is equal to or greater than 150%/300%, attacking a Weakness-Broken enemy target will convert the Toughness Reduction of this attack into 1 instance of 100%/150% Super Break DMG.

Major trace Module γ: Core Overload

Ascension 6

For every 10 point(s) of SAM's ATK that exceeds 1800, increases this unit's Break Effect by 0.8%.

Major trace Module α: Antilag Outburst

Ascension 2

During the Complete Combustion, attacking enemies that have no Fire Weakness can also reduce their Toughness, with the effect being equivalent to 55% of the original Toughness Reduction from abilities.

Major trace Module β: Autoreactive Armor

Ascension 4

When SAM is in Complete Combustion with a Break Effect that is equal to or greater than 200%/360%, attacking a Weakness-Broken enemy target will convert the Toughness Reduction of this attack into 1 instance of 35%/50% Super Break DMG.

Major trace Module γ: Core Overload

Ascension 6

For every 10 point(s) of SAM's ATK that exceeds 1800, increases this unit's Break Effect by 0.8%.

Minor trace Break Effect +74.6%

Minor trace Effect RES +36%

Minor trace SPD +10

Dupes / advancement

Rank 1 In Reddened Chrysalis, I Once Rest

When using the Enhanced Skill, ignores 15% of the target's DEF. The Enhanced Skill does not consume Skill Points.

Rank 2 From Shattered Sky, I Free Fall

While in Complete Combustion, using the Enhanced Basic ATK or the Enhanced Skill to defeat an enemy target or to Break their Weakness allows SAM to immediately gain 1 extra turn. This effect can trigger again after 1 turn(s).

Rank 3 Amidst Silenced Stars, I Deep Sleep

Skill Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.

Rank 4 Upon Lighted Fyrefly, I Soon Gaze

While in Complete Combustion, increases SAM's Effect RES by 50%.

Rank 5 From Undreamt Night, I Thence Shine

Ultimate Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.

Rank 6 In Finalized Morrow, I Full Bloom

While in Complete Combustion, increases SAM's Fire RES PEN by 20%. When using the Enhanced Basic ATK or Enhanced Skill, increases Weakness Break Efficiency by 50%.

Materials summary

Borisin Teeth
Credit
Fragments of Impression
Lost Echo of the Shared Wish
Lupitoxin Sawteeth
Moon Rage Fang
Shards of Desires
Tatters of Thought
Tracks of Destiny

Tier placements

Not listed on any active tier list snapshot yet.

Related guides

No guides mention this character yet.