Best Firefly Build, Team and Eidolons HSR 2026
The best Firefly build turns this 5-star Fire Destruction fighter into one of the game’s hardest-hitting Super Break carries in Honkai Star Rail.
The best Firefly build turns this 5-star Fire Destruction fighter into one of the game’s hardest-hitting Super Break carries in Honkai Star Rail. Her Ultimate drops her into Complete Combustion, swapping her Basic ATK and Skill for enhanced versions that shred Toughness and convert it straight into damage.
I’ve put together the Light Cones, Relics, trace priority, stat priority, teams, and Eidolon verdicts for the best Firefly build so you can get the most value out of her, no matter if you’re running a premium Break team or a fully F2P lineup.
TL;DR – Best Firefly Build at a Glance
Best Light Cone Whereabouts Should Dreams Rest Best F2P Light Cone Alternative On the Fall of an Aeon Best Relic Set Iron Cavalry Against the Scourge (4pc)
Best Planar Ornament Set Forge of the Kalpagni Lantern (2pc)
Main Stats Body:
ATK% Boots:
SPD Planar Sphere:
ATK% Link Rope:
Break Effect Substat priority SPD > Break Effect > ATK% Best team (Overall)
Firefly (DPS)
Tingyun Fugue (Support)
The Dahlia (Support)
Lingsha (Support)
Best team (F2P)
Firefly (DPS)
Trailblazer Harmony (Support)
Asta (Support)
Lynx (Support)
How to Play Firefly: Rotation and Tips
Open with her Ultimate, Fyrefly Type-IV: Complete Combustion, which pushes her turn forward immediately and swaps her Basic ATK and Skill into enhanced versions for the rest of the state. From there, her Skill, Order: Aerial Bombardment, burns her own HP for a big single-target hit and a full Energy refund, while her enhanced Basic ATK and Skill both apply Fire Weakness and pile on Break DMG.
Her Talent, Chrysalid Pyronexus, quietly does the defensive work in the background – damage reduction scales up as her HP drops, capping out at 40% once she’s below 20% HP, so she gets tankier the harder her own Skill hits her. Keep cycling enhanced Basic ATK and Skill until Complete Combustion runs out, then repeat the loop on her next turn.
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