Gallagher 
Abundance A security officer of the Bloodhound Family at Penacony. He is always courteous toward visiting guests but keeps his vigilance about him. He seems to carry a weight of a complicated past, yet he never voluntarily divulges any details.
HP
ATK
DEF
SPEEDBreak Effect Healer Build
Best Light Cone
Gallagher Best Stats
Gallagher Best Substats
Gallagher Best Relics
Gallagher Best Ornaments
Forge of the Kalpagni Lantern
Talia: Kingdom of Banditry
Giant Tree of Rapt Brooding
Gallagher Best Teams
Imaginary Break Team (March 7th)
Gallagher acts as the team's healer while applying Besotted. March 7th is the main Break DPS; Harmony Trailblazer and Asta boost Break Effect and SPD to maximize Break damage and uptime.
Break Support Team (Firefly)
This comp centers on boosting Break Effect. Gallagher sustains and debuffs; Fugue and Ruan Mei increase Break Effect and add strong follow-up damage on Weakness Broken enemies for the main Break DPS.
Debuff / Follow-up Team (Acheron)
Gallagher provides sustain and Besotted to boost DPS who rely on debuffs/slash stacks or follow-up attacks (e.g., Acheron, Dr. Ratio). Great when your DPS benefits from enemies being debuffed frequently.
Memosprite / Sustain Team (Castorice)
Good when your DPS requires frequent healing to maintain damage (Castorice). Gallagher's healing complements Castorice's Memosprite uptime and keeps the team sustainable.
Quantum/Fire Weakness Team (Himeko)
Use when the enemy is weak to Quantum but not to Fire. Silver Wolf is important to implant Fire Weakness if needed so your Fire damage dealers can perform; Gallagher provides sustain and debuff support.
Skills
Deals Fire DMG equal to 0.5% of Gallagher's ATK to one designated enemy target.
Immediately heals a target ally for 200 HP.
Inflicts Besotted on all enemies, lasting for 2 turn(s). At the same time, deals Fire DMG equal to 0.75% of Gallagher's ATK to all enemies, and enhances his next Basic ATK to Nectar Blitz.
The Besotted state makes targets receive 6% more Break DMG. Every time a Besotted target gets attacked by an ally, the attacking ally's HP is restored by 80.
Break DMG increases with higher Break Effect, higher target max Toughness, and higher character levels. Break DMG cannot CRIT Hit and is not affected by DMG Boost effects.
Traces
Eidolon
When entering the battle, Gallagher regenerates
When using the Skill, dispels
Debuffs are negative status effects that render units weaker. Unless otherwise specified, debuffs can be dispelled.
Skill Lv. +2, up to a maximum of Lv.
Extends the duration of the Besotted state inflicted by Gallagher's Ultimate by
Ultimate Lv. +2, up to a maximum of Lv.
Increases Gallagher's Break Effect by