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Firefly is a 5-Star Fire character following the Path of Destruction. She is a specialized Super Break DPS who transforms into the "SAM" mecha to deal massive damage. She is unique because she does not rely on Crit stats, focusing purely on Break Effect and Speed.
- Role: Main DPS (Super Break)
- Tier Ranking: S+ (Meta Defining)
- Best Stat Priority: Break Effect > SPD > ATK%
Quick Build Cheat Sheet
| Category | Recommendation |
|---|---|
| Best Light Cone | Whereabouts Should Dreams Rest (5★) |
| Best F2P Light Cone | On the Fall of an Aeon (5★ Herta Store) |
| Best Relic Set | 4pc Iron Cavalry Against the Scourge |
| Best Planar Set | 2pc Forge of the Kalpagni Lantern |
| Trace Priority | Ultimate > Skill > Talent > Basic |
| Suggested SPD | 150 (In battle) / 210 (Complete Combustion) |
1. Character Kit & Analysis
Firefly consumes her own HP to charge her Ultimate, then enters the "Complete Combustion" state where she becomes a destruction machine with enhanced efficiency and weakness implant capabilities.
Abilities Breakdown
- Skill (Order: Aerial Bombardment):
Analysis: Consumes HP to regenerate a massive amount of Energy (60% Max Energy). This is your primary way to charge her Ultimate. - Ultimate (Fyrefly Type-IV: Complete Combustion):
Analysis: The Core of her kit. Enters the "Complete Combustion" state, advances her action by 100%, and grants massive Speed and Break Efficiency. - Enhanced Skill (Firefly Type-IV: Deathstar Overload):
Analysis: Available only during Ultimate. Implants Fire Weakness on the target (ignoring RES) and deals damage scaling with Break Effect. Does not consume Skill Points (E1) or consumes SP (E0). - Talent (Chrysalid Pyronexus):
Analysis: Provides damage reduction based on missing HP and increases Effect RES during Ultimate. - Technique (Order: Meteoric Incineration):
Utility: Launches a plunge attack that inflicts Fire Weakness on all enemies at the start of battle. Essential for fast clears.
Trace Leveling Priority
Major Traces to Unlock:
- Module γ: Core Overload: Enables Super Break DMG when attacking enemies.
- Module β: Autoreactive Armor: Increases Break Effect based on ATK (conversion rate).
- Module α: Antilag Outburst: Action Advance when entering Complete Combustion.
2. Best Light Cones (Weapons)
Damage & Utility Comparison:
1. Whereabouts Should Dreams Rest (Signature)
Why it's best: Provides massive Break Effect and applies a vulnerability debuff ("Routed") that increases damage taken by enemies. This is a separate multiplier that scales extremely well.
2. On the Fall of an Aeon (Herta Store 5★)
Performance: The best F2P option by far. It gives a huge ATK% buff (which converts to Break Effect via her Trace) and is easy to max out (S5) for free.
3. Relics & Planar Ornaments
| Rank | Set Name | Reason |
|---|---|---|
| Best | 4pc Iron Cavalry Against the Scourge | Tailor-made for Firefly. Allows her Break/Super Break damage to ignore 15-25% of enemy DEF. |
| Alt | 4pc Genius of Brilliant Stars | Good alternative if the enemy has Quantum Weakness or you have amazing substats. |
Main Stats & Sub Stats
- Body: ATK% (Converts to Break Effect)
- Feet: SPD (Essential to reach 210 SPD breakpoint in ult)
- Planar Sphere: ATK% (Fire DMG is useless for Break)
- Link Rope: Break Effect
Sub-stat Focus: Break Effect > SPD > ATK%
Target Stats (Breakpoints)
- SPD: 150 (Base) -> Becomes 210 in Ultimate (4 actions per cycle).
- Break Effect: 360% (In battle) -> Required to max her Super Break trace.
- ATK: 2500+ (To feed her BE conversion trace).
4. Eidolon Analysis
- E1 (In Red Chrysalis, I Once Rest): Enhanced Skill consumes 0 Skill Points and ignores 15% DEF. Value: High (Comfort)
- E2 (From Shattered Sky, I Free Fall): Grants an Extra Turn when breaking enemies or defeating them. Value: Game Changer (Best Eidolon)
- E6 (In Final Tomorrow, I Bloom): Increases Fire RES Penetration and Break Efficiency. Value: Maximum Potential
Verdict: Firefly is extremely strong at E0. However, E2 is considered one of the strongest Eidolons in the entire game, effectively doubling her actions.
5. Best Teams & Synergies
Note: Firefly is heavily reliant on the **Harmony Trailblazer (Imaginary)** to function at 100% capacity due to their Super Break backup dancer mechanic.
Team Comp 1: The Premium Break Team
- Firefly (Main DPS)
- Harmony Trailblazer (Essential Support) - Enables Super Break.
- Ruan Mei (Support) - Break Efficiency and Speed buffs.
- Lingsha / Gallagher (Sustain) - Increases Break DMG taken by enemies.
Team Comp 2: F2P Friendly
- Firefly
- Harmony Trailblazer
- Asta (SPD/ATK Buffs) or Pela (DEF Shred)
- Gallagher (Best 4★ Sustain for her)
6. Gameplay & Rotation
To maximize Firefly's damage window:
- Technique: Enter battle with technique to apply Weakness immediately.
- Normal State: Use Skill to regenerate Energy. (Usually takes 1-2 skills).
- Ultimate: Cast immediately when energy is full. This advances her action 100%.
- Combustion State: Spam Enhanced Skill. Aim to fit 4 attacks into the countdown window (requires 210 SPD total).
- Tip: Never use Basic ATK in Combustion state unless you are desperate or fighting trash mobs.
7. Ascension & Trace Materials
Total materials required to reach Level 80 and Max Traces:
| Material Type | Amount Required |
|---|---|
| Raging Heart (Stagnant Shadow) | x65 |
| Borisin Teeth (Destruction Calyx) | x139 (Purple) / x69 (Blue) / x18 (Green) |
| Lost Echo of the Shared Wish (Weekly) | x12 |
| Tatters of Thought (Enemy Drop) | x56 (plus higher tier variants) |
| Credits | ~3,300,000 |
8. Pros and Cons
| Pros | Cons |
|---|---|
| Implants Fire Weakness on everyone | Heavily relies on Harmony Trailblazer |
| Doesn't need Crit stats (Easy to build) | Damage drops significantly if enemies lock their weakness bar |
| High F2P friendly (Aeon LC is great) | HP consumption mechanic requires attentive healing |
9. Frequently Asked Questions (FAQ)
Q: Should I pull for E1 or S1 (Signature Light Cone) first?
A: E1 > S1. E1 solves her SP issues completely, allowing more comfortable team play. S1 is a damage increase, but "Fall of an Aeon" is a very close second.
Q: Can I play Firefly without Ruan Mei?
A: Yes, but the performance drop is noticeable. You can replace Ruan Mei with Asta or Pela, but Ruan Mei's Break Efficiency buff is unique and extremely valuable for Firefly.
