Firefly
Yes for Super Break—Firefly remains a top Fire Break carry. Ultimate “Fyrefly Type-IV: Complete Combustion” enters Complete Combustion with full action advance, SPD, and Break-boosted Enhanced attacks. Needs Fugue. Best partners: The Dahlia / Ruan Mei / Lingsha / Gallagher. Skill burns SP; pair SP-positive Break supports. Skip when you will not field Break supports (Fugue / Ruan Mei / Harmony TB)—Complete Combustion needs that package.
Firefly is a 5★ Fire Destruction Break DPS. Skill “Order: Aerial Bombardment” is the primary in-combat spend. Ultimate “Fyrefly Type-IV: Complete Combustion” is the payoff window for damage or team utility. This Phase 1 page covers kit text, gear targets, and pull notes—team comps stay empty until Phase 2.
Overview
Quick Build
Light Cone
Whereabouts Should Dreams Rest
Signature BiS when owned.
Relic Set
Scholar Lost in Erudition (4pc) + Inert Salsotto (2pc)
Standard Destruction relic direction for Firefly.
Body
CRIT Rate%
Main stat
Feet
ATK%
Main stat
Sphere / Rope
Fire DMG% · ATK%
Substats
CRIT Rate ≥ CRIT DMG > ATK% > SPD
Strengths
- Ultimate “Fyrefly Type-IV: Complete Combustion” enters Complete Combustion with full action advance, SPD, and Break-boosted Enhanced attacks—most of the kit’s damage lives inside that window, not on filler Basics.
- Skill “Order: Aerial Bombardment” spends a large HP chunk to refund Energy and advance action—the rotation wants controlled self-damage, not panic healing that cancels the state.
- Talent “Chrysalid Pyronexus” scales DMG Reduction with low HP and locks max reduction in the burst state—survivability is written into the damage plan, not bolted on later.
- Firefly can implant or force Fire-relevant Weakness from the kit itself—Break and Toughness routes stay online even when the MoC line-up did not list Fire.
Weaknesses
- E0 without “Whereabouts Should Dreams Rest” is still clearable, but the gap versus a signature copy is larger than a single eidolon for most Destruction carries—plan the cone before deep eidolon hunting.
- HP-spend skills mean Firefly can soft-lock if sustain is weak or if a healer tops them up at the wrong time and breaks a low-HP / Charge condition.
- Firefly wants Break Effect supports and Toughness bars that can actually be broken; into awkward weakness line-ups the Complete Combustion / Break loop loses most of its damage.
- Spamming “Order: Aerial Bombardment” every turn without watching Skill Points strands the rest of the team—Firefly is often the SP sink.
Trace Priority
Fyrefly Type-IV: Complete Combustion carries most of the kit’s damage or utility—level this first.
Order: Aerial Bombardment supports the main rotation—raise after the top priority traces.
Chrysalid Pyronexus supports the main rotation—raise after the top priority traces.
Order: Flare Propulsion is last priority outside of filling trace materials.
Stat Priority
Open with Technique if it helps, spend Skill to advance the kit’s resource, and hold Ultimate for the damage or buff window. Exact teammate order lands in Phase 2.
Open supports first, then spend the carry’s Skill/Ult inside the buff window. Exact order varies by the team tab above.
Light Cones
5★ · Path cone
Increases the wearer's Break Effect by 0.6%. When the wearer deals Break DMG to an enemy target, inflicts Routed on the enemy, lasting for 2 turn(s). Targets afflicted with Routed receive #2[f1]% increased Break DMG from the wearer, and their SPD is lowered by 0.2%. Effects of the same type cannot be stacked.
Why it works —Signature / best-in-slot when owned—passive lines up with Firefly’s kit triggers.
5★ · Path cone
When the wearer attacks, increases their ATK by 0.08% in this battle. This effect can stack up to 4 time(s). After the wearer breaks an enemy's Weakness, increases DMG dealt by 0.12%, lasting for 2 turn(s).
Why it works —Best accessible option for most accounts—raise superimposition when copies drop.
4★ · Path cone
Increases DMG dealt by the wearer by 0.2%. The wearer also deals an extra 0.2% of DMG to enemies whose current HP percentage is equal to or higher than the wearer's current HP percentage.
Why it works —Budget path cone—fine while building the account.
4★ · Path cone
Increases the wearer's ATK by 0.16%. When the wearer defeats an enemy, the wearer's CRIT Rate increases by 0.12% for 3 turn(s).
Why it works —Budget path cone—fine while building the account.
Relics
Team Compositions
Primary Break / Toughness team for Firefly. Fugue, The Dahlia, Lingsha are the partners the kit / endgame clears assume first.
Core carry for this shell — owns the damage plan and sets the rotation pace.
Fugue enables Super Break / Toughness pressure rather than a generic CRIT Harmony slot.
The Dahlia enables Super Break / Toughness pressure rather than a generic CRIT Harmony slot.
Lingsha keeps Toughness routes alive with heals (and Break-friendly sustain when built that way).
Traces & Eidolons
Traces
Deals Fire DMG equal to 140% of SAM's ATK to one designated enemy.
Consumes HP equal to 40% of this unit's Max HP and regenerates a fixed amount of Energy equal to 65% of this unit's Max Energy. Deals Fire DMG equal to 250% 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%.
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 75, 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 25.0%, 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.
The lower the HP, the less DMG received. When HP is 20% or lower, the DMG Reduction reaches its maximum effect, reducing up to 50%. During the Complete Combustion, the DMG Reduction remains at its maximum effect, and the Effect RES increases by 40%. 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.
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.
Restores HP by an amount equal to 20% of this unit's Max HP. Deals Fire DMG equal to 280% of SAM's ATK to one designated enemy.
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 + 250.0%) of SAM's ATK to this target. At the same time, deals Fire DMG equal to (0.1 × Break Effect + 125.0%) of SAM's ATK to adjacent targets. The Break Effect taken into the calculation is capped at 360%.
Eidolons
When using the Enhanced Skill, ignores 15% of the target's DEF. The Enhanced Skill does not consume Skill Points.
Is it worth getting?
Comfort opener: Enhanced Skill ignores a slice of DEF and costs 0 Skill Points. Nice QoL/damage, but E0 still runs the full kit—don’t break pity for E1 alone.
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).
Is it worth getting?
Defining stop for many accounts: Enhanced attacks that defeat or Break a target grant an immediate extra turn (short internal cooldown). Pull here if you main Firefly; this is the eidolon that changes how the kit is played.
Skill Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
Is it worth getting?
Skill + Basic ATK levels only (+2). Free if you roll into it; never spend currency aiming for E3.
While in Complete Combustion, increases SAM's Effect RES by 50%.
Is it worth getting?
Side-grade: Pads Effect RES during the enhanced state. Happy if it drops; not a planned stopping point.
Ultimate Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
Is it worth getting?
Ultimate + Talent levels only (+2). Skip as a goal—grab it if you overshoot toward E6, never hard-pity for it.
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%.
Is it worth getting?
Whale ceiling: Adds RES PEN (or ignore) during the burst window. Only chase if Firefly is your dedicated Destruction main and E0–E2 already feel finished.
Firefly is fully usable at E0. Dedicated mains often stop at E0 before chasing higher. First stop: E0. Endgame target: E0.
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