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Firefly HSR: Character Overview and Kit 2026

Firefly is one of the strongest Fire element attackers on the Destruction path in HSR, built entirely around a single explosive transformation that turns…

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Firefly is one of the strongest Fire element attackers on the Destruction path in HSR, built entirely around a single explosive transformation that turns her own HP into massive Break damage. She’s a limited 5-star who spends turns setting up before detonating an enemy’s Toughness bar in one violent state change, and that identity makes her one of the more distinctive damage dealers in the game right now.

This character guide covers her kit, her Traces and Eidolons, her banner and top-up situation, and a final verdict on whether she’s worth pulling for based on what your roster already has.

Firefly at a Glance: Character Profile

Rarity 5★ Element Fire Path Destruction Role DPS Released Version 2.3 (Firefull Flyshine banner)

Reruns Version 2.7 (Firefull Flyshine banner)

Version 3.4 (Firefull Flyshine banner)

Version 3.7 (Firefull Flyshine banner)

Version 4.2 (Indelible Coterie Phase 1 banner)

Voice actors Analesa Fisher | SAM: Adin Rudd (EN)

Kusunoki Tomori| SAM: Kasama Jun (JP)

Song Yuanyuan | SAM: Gan Ziqi (CH)

Yu Hye-ji | SAM: Jang Seo-hwa (KR)

  • Overall Rating
  • EX
  • Endgame Ratings
  • Memory of Chaos: EX
  • Pure Fiction: S
  • Apocalyptic Shadow: EX

Story and Background: Who is Firefly in Honkai Star Rail?

Firefly is introduced as a mysterious fighter whose true identity stays deliberately obscured for most of her introductory questline. She pilots a combat suit that lets her burn through her own HP for a short but devastating transformed state, an idea that carries directly into her gameplay as Complete Combustion.

She’s guarded and mission-focused, saying little, and her early scenes lean into that mystery instead of resolving it outright. Her character concept is built around risk and payoff.

Everything about her kit, from the HP cost on her Skill to the timer on her transformation, paints her as a fighter who commits fully instead of playing it safe. That tension between vulnerability and raw destructive power is the throughline of her design, in and out of combat.

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