Gallagher HSR build
Gallagher
Gallagher marks enemies Besotted, advances into a Toughness-heavy Basic and sustains the team through its own attacks.
Fire
Abundance- Role
- Fire Break healer and debuffer
- Version
- 4.4
- Reviewed on
- August 13, 2026
Recommended build
Light Cone
Scent Alone Stays TrueScent Alone Stays True gives Break Effect and applies an Ultimate vulnerability that makes Besotted enemies take more damage.
Quid Pro QuoQuid Pro Quo restores Energy to a low-Energy ally on Gallagher's fast turns, trading personal Break damage for team cycling.
What Is Real?What Is Real? supplies Break Effect and heals Gallagher after Basic Attacks, supporting both his damage and self-sufficiency.
It is available from the Forgotten Hall shop without limited Warps.
Post-Op ConversationPost-Op Conversation accelerates Gallagher's Ultimate and strengthens its outgoing healing.
Relics
Two Passerby pieces add outgoing healing and two Messenger pieces add SPD.
Thief adds Break Effect and restores Energy when Gallagher causes Weakness Break.
Planar Ornaments
Forge of the Kalpagni Lantern gives SPD and a large Break Effect burst after Gallagher hits Fire weakness.
When to use it : Use only when the priority enemy has Fire weakness.
Talia: Kingdom of Banditry provides unconditional Break Effect at 145 SPD when Fire weakness cannot activate Kalpagni.
When to use it : Reach 145 SPD.
Fleet of the Ageless adds HP and a team ATK bonus.
When to use it : Reach 120 SPD.
Team lineup
Firefly and Gallagher shred Fire Toughness, Ruan Mei extends the break window, and Harmony Trailblazer converts every hit into Super Break.
When to use it : Apply Besotted before Firefly's enhanced sequence and use Gallagher's enhanced Basic inside the same break window.
Compare the options — Gallagher
Choose based on your equipment and the stated conditions. These tables bring together the guide’s qualitative recommendations, without measured damage comparisons.
- Guide version
- 4.4
- Recommendations reviewed
- Assumed role
- Fire Break healer and debuffer
The guide’s stat targets and rotation provide the context. Eidolons, superimpositions, substats and enemies may change the choice; options are not evaluated at equal investment.
On small screens, scroll the table horizontally to compare columns.
| Option | Why choose it? | Conditions and availability |
|---|---|---|
| Guide’s reference choice | Scent Alone Stays True gives Break Effect and applies an Ultimate vulnerability that makes Besotted enemies take more damage. | No additional condition documented in this guide. |
| Alternative | Quid Pro Quo restores Energy to a low-Energy ally on Gallagher's fast turns, trading personal Break damage for team cycling. | No additional condition documented in this guide. |
| Accessible option | What Is Real? supplies Break Effect and heals Gallagher after Basic Attacks, supporting both his damage and self-sufficiency. | No additional condition documented in this guide. It is available from the Forgotten Hall shop without limited Warps. |
| Alternative | Post-Op Conversation accelerates Gallagher's Ultimate and strengthens its outgoing healing. | No additional condition documented in this guide. |
| Option | Why choose it? | Conditions and availability |
|---|---|---|
| Guide’s reference choice | Two Passerby pieces add outgoing healing and two Messenger pieces add SPD. | No additional condition documented in this guide. |
| Alternative | Thief adds Break Effect and restores Energy when Gallagher causes Weakness Break. | No additional condition documented in this guide. |
| Option | Why choose it? | Conditions and availability |
|---|---|---|
| Guide’s reference choice | Forge of the Kalpagni Lantern gives SPD and a large Break Effect burst after Gallagher hits Fire weakness. | Use only when the priority enemy has Fire weakness. |
| Alternative | Talia: Kingdom of Banditry provides unconditional Break Effect at 145 SPD when Fire weakness cannot activate Kalpagni. | Reach 145 SPD. |
| Situational | Fleet of the Ageless adds HP and a team ATK bonus. | Reach 120 SPD. |
Only one option documented: no A/B comparison available.
| Option | Why choose it? | Conditions and availability |
|---|---|---|
| Guide’s reference choice | Firefly and Gallagher shred Fire Toughness, Ruan Mei extends the break window, and Harmony Trailblazer converts every hit into Super Break. | Apply Besotted before Firefly's enhanced sequence and use Gallagher's enhanced Basic inside the same break window. |
Trace priority
- Talent
- Ultimate
- Basic ATK
- Skill
Gallagher applies Besotted with Ultimate, advances himself into an enhanced Basic and lets allies heal by attacking marked enemies.
How to play it
- 1Basic Attack to generate Skill Points until healing or cleanse is needed.
- 2Cast Ultimate before the team's Break burst to mark enemies Besotted and advance Gallagher.
- 3Use the enhanced Basic immediately to reduce enemy ATK and deal heavy Fire Toughness damage.
Sources and methodology
Editorial recommendations are written from released game data, then cross-checked against specialist calculations. They are not copied from a single tier list.
Review method
The audit separates sustain, Besotted uptime and Fire Toughness damage. Kalpagni is only credited against Fire weakness, and Ultimate action advance is not counted as sheet SPD.
- Game data snapshot
- 4.4
- Snapshot commit
- 648b08fb
- Baseline version
- 2.1
- Published on
- Editorial review by
- HoyoWhatpeon
- Prydwen — Gallagher build and calculationsChecked 2026-08-13
- Icy Veins — Gallagher guide and buildsChecked 2026-08-13
- TurnBasedGameData — Version 4.4 exact snapshotChecked 2026-08-13
- TurnBasedGameData — released Version 4.0 to 4.4 deltaChecked 2026-08-13
- HoYoLAB — Version 4.4 update detailsChecked 2026-08-13
E0 Break sustain build. The Kalpagni ornament requires a Fire-weak target; against other weaknesses use Talia instead of pretending the Break bonus is active.
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