Firefly's 3.8 Rerun: Nailing Super Break Relic Substats in Pure Fiction—With or Without The Dahlia

Firefly drops back in on December 16, 2025 (10:00 PM UTC-5 for NA folks, 4:00 AM UTC+1 EU, 11:00 AM UTC+8 Asia). Phase 1 runs through Jan 6, 2026, packing her alongside The Dahlia, Boothill, and Rappa. Aim for 360%+ Break Effect (BE) on relics to dominate Super Break in Pure Fiction. Even F2P squads with HTB, Ruan Mei, and Gallagher smash 85-95% clears; Dahlia just unlocks pre-break damage for that extra edge.

Author: Sarah MitchellSarah Mitchell Publish at: 2025/12/03 6 min read

Why Firefly Super Break Shines in 3.8's Pure Fiction Rerun

Her Ultimate? A beast: +60 SPD, +50% BE Eff, enemies take +20% Break DMG, full action advance, 10% Energy from Fire breaks (capped at 50%), and it slams Fire Weakness via Enhanced Skill. Pure Fiction resets same day, December 16, coughing up 600 Jade Feathers. Super Break thrives here—waves respawn endlessly, each enemy kill nets 5 energy, and 100 Grit amps team DMG by 30-50%.

Phase 1 farming nets 14,400 Stellar Jade (that's 114 pulls plus 25 Special Passes) for a guarantee (soft pity 75, hard 90). F2P? You can swing it with 14,260 Jade + those 25 passes—prioritize Dahlia at E0. Super Break turns pre-break Toughness straight into damage. Dahlia's 3-turn Zone pumps +50% team BE Eff; Iron Cavalry 4pc at 150%+ BE ignores 10% enemy DEF on Break DMG, scaling to 15-25% ignore at 250%+ on Super Break.

Quick Action Plan:

  1. Eye the banners December 16.
  2. Burn 90 TB Power across 3 Shadows weekly for mats.
  3. Scout Pure Fiction's Fire-weak foes.

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Breaking Down Firefly's Kit for Super Break Domination

At Lv80, she scales pure ATK on Super Break, with Talent giving 40% DR below 20% HP. Trace priorities: Ult > Talent > Skill=Basic (all crave that +50% BE). Push Energy Regen past 140; two Skills fuel her Ult with +25% forward action.

Ult spikes her to 210 SPD. She dishes 30% team DMG boost, but HTB via Ruan Mei cranks it to 60%. Super Break at 360%+ BE? It obliterates SPD thresholds. Hit 150% BE for +10% DEF ignore; 250%+ unlocks 15-25%.

Quick Action Plan:

  1. Grind traces: 65 Raging Hearts (Stagnant Shadow), 12 Lost Echo (Echo of War, 3 per week).
  2. Slap on Rope (BE%), Body (ATK%), Feet (SPD—target 162-165, Ult peaks at 210).
  3. Test ER hold-up in Sim Universe.

Top Relic Sets to Crush with Super Break Firefly

Iron Cavalry Against the Scourge relic set in Honkai Star Rail

Iron Cavalry Against the Scourge 4pc is king: 2pc nets +16% BE; dive into Caverns of Jabbing Punch. Thief of Shooting Meteor 4pc as backup (+16% BE, +3 Energy on Break). Planars? Forge of the Kalpagni Lantern 2pc (+6% SPD, +40% BE on Fire Weakness). Talia: Kingdom of Banditry 2pc (+16% BE, jumps to +36% at 145+ SPD).

Iron Cavalry at 360%+ BE? Max Super Break output, edges out SPD boots in MoC and PF. Forge for Fire synergy; Talia as hybrid if you're speedy. (Editor note: I've farmed these caverns dry—patience pays.)

Quick Action Plan:

  1. Snag 20+ BE-heavy pieces from Iron Cavalry/Thief.
  2. Subs: BE > SPD > ATK% > HP%.
  3. Pioneer Diver of Dead Waters as alt (+12% DMG on debuffs).

Substat Targets When You've Got The Dahlia

The Dahlia character from Honkai Star Rail

Dahlia at Lv80: ATK 679, DEF 606, HP 1086, SPD 96, Energy 130. Her Zone? +50% BE Eff teamwide, flipping pre-break into Super Break gold. Talent ties to your highest BE ally—35 Energy regen, 60% Super Break on breaks, and 5x 30% ATK FUAs per turn at 200% eff.

Sig LC Never Forget Her Flame: +60-120% BE, +32-72% Break DMG (self + top BE buddy), 1 SP refund on Weakness implant. Chase 360%+ total BE, SPD at least 145-165. Priority: E0 + Sig LC > E2 (+20% BE Eff, Zone lasts +1 turn) > E6 (+150% BE to partners).

Rotation shines: Dahlia Skill (160% ATK Fire DMG + Zone) → Firefly Ult → Enhanced Skill. E1 adds +40% Super Break multiplier to allies.

Quick Action Plan:

  1. Stock Dahlia mats early: 65 Radiant Prominence (Shape of Ashes, 22-33 runs), 56 Tatters.
  2. Lock 360% BE for those 5x FUAs/turn.
  3. Cycle: Dahlia Skill → Firefly Ult → Fugue for max FUAs/Super Break.

F2P Substat Goals—No Dahlia Needed

F2P Super Break relic substats guide for Firefly in Honkai Star Rail

F2P? Firefly Ult + HTB/Ruan Mei clears 85-95% Pure Fiction easy. Still gun for 360% BE; even mid-tier relics at 161 SPD/205% BE get the job done. LC picks: Whereabouts Should Dreams Rest (+60% BE, +24% Break DMG taken). F2P flex: On the Fall of an Aeon S5 (+16% ATK x4, +24% DMG post-break, convert ATK% to BE via traces).

Firefly E1: SP-free Enhanced Skill +15% DEF ignore. E2: Extra turn after break. Budget rule: BE > SPD subs, juggle 2-3 crit slots smartly.

Quick Action Plan:

  1. Pump HTB into Iron Cavalry for 60% team DMG.
  2. Core team: Firefly + HTB + Ruan Mei + Gallagher (SP-neutral miracle).
  3. Hoard 100+ Tatters (dailies, SimUniv, Omni-synth) in weeks 1-2.

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Pure Fiction Tweaks That Make Firefly Pop

Firefly Super Break in Pure Fiction mode from Honkai Star Rail

PF's respawning waves? Super Break AoE feasts—equals 7-8 MoC cycles, 85-95% clears on weakness/Toughness exploits. Ruan Mei +50% Break Eff is non-negotiable. Gallagher's Ult reblooms every 3-4 turns for Fire breaks.

Blessings like Torn Fabric juice Hyper-Break; 100 Grit for 30-50% DMG. Benchmarks show F2P hitting 90%+; Dahlia/Fugue/Lingsha squads 5-cycle it.

Quick Action Plan:

  1. Hunt Fire-weak PF enemies first.
  2. Ditch shields (Aventurine)—Gallagher rules.
  3. Flow: Supports Ult/Zone → Firefly Ult → Enhanced Skill.

Your 6-Week Prep Roadmap for 3.8 Rerun

Wk1-2: 100+ Tatters. Wk3-4: Stagnant Shadows/Echo of War. Wk5-6: Relics and ores. Firefly needs 65 Raging Hearts, 12 Lost Echo. Relic grind: +15 max, 20+ Iron Cavalry with BE/SPD subs.

Teams: F2P Firefly/HTB/Ruan Mei/Gallagher. Premium: Firefly/Fugue/Ruan Mei, or Dahlia/Lingsha/Gallagher (+50% Eff, DEF shred).

Quick Action Plan:

  1. Daily 30 TB into Stagnant Shadows.
  2. Weekly 90 TB/3 Echoes.
  3. Pull for Dahlia E0S1.

Pitfalls That'll Wreck Your Firefly Run

Shields with Firefly? Big no—they deplete before reapply. BE trumps SPD for DEF shred (150% = +10%, 250%+ = 15-25%). Don't greed pure BE; balance 2-3 crit. SPD breakpoints: 162-165 (145+ with supports/Talia), Ult at 210.

Firefly E1 SP-free Enhanced +15% ignore; E2 extra turn post-break. (Ever wiped a PF wave because of this? I have—lesson learned.)

Quick Action Plan:

  1. Swap Aventurine for Gallagher.
  2. Grade to 360% BE upfront.
  3. Nail those SPD breakpoints.

Killer Team Comps and Support Synergies

Team compositions for Firefly Super Break in Honkai Star Rail Pure Fiction

HTB? Super Break amplifier extraordinaire (F2P MVP), 60% team DMG. Fugue doubles breaks/FUAs. Ruan Mei is core +50% Eff. Pair her with Dahlia for peak synergy. Flex sustain: Lingsha or Gallagher.

Quick Action Plan:

  1. Build HTB Iron Cavalry heavy.
  2. Rotate Dahlia/Firefly/Fugue.
  3. Gallagher owns Fire PF.

FAQ: Firefly Super Break Quick Hits

Best relic substats for Firefly Super Break in 3.8?
BE > SPD > ATK% > HP%; 360%+ BE, 162-165 SPD.

The Dahlia a must for Pure Fiction Firefly?
Nah—F2P with HTB/Ruan Mei/Gallagher clears 85-95%. Dahlia just adds pre-break Super Break spice.

Super Break Firefly sans Dahlia?
Iron Cavalry 4pc, Forge/Talia planars; On the Fall of an Aeon S5. HTB teams hit 90%+.

Substat prios with Ruan Mei?
360%+ BE; her +50% Eff feeds 60% team DMG through HTB.

Relic farming for Super Break prep?
Caverns of Jabbing Punch for Iron Cavalry; 20+ BE/SPD pieces, kick off with 6-week Tatters.

Prime Pure Fiction teams for 3.8 Firefly?
F2P: Firefly/HTB/Ruan Mei/Gallagher. Premium: Firefly/Dahlia/Fugue/Lingsha for 5-cycles.

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