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
Free-to-Play Break Team
Free-to-play team with Gallagher as healer, March 7th as Main Break DPS, and Harmony Trailblazer and Asta as supports to boost Break Effect and SPD.
Firefly Break Team
Gallagher works well with Supports that increase Break Effect, like Fugue and The Dahlia, to deal heavy damage on Weakness Broken enemies.
Acheron Debuff Team
Gallagher provides debuffs to increase Acheron's Slashed Dream stacks and enable Dr. Ratio's Follow-Up Attacks.
Castorice Heal Team
Gallagher provides constant healing for Castorice, which helps heal her Memosprite Skill.
Himeko Weakness Implant Team
Team synergizes with Silver Wolf to implant Fire weakness, allowing Himeko to break effectively.
Skills
Deals Fire DMG equal to #1[i]% of Gallagher's ATK to one designated enemy target.
Immediately heals a target ally for #1[i] HP.
Inflicts Besotted on all enemies, lasting for #2[i] turn(s). At the same time, deals Fire DMG equal to #1[i]% of Gallagher's ATK to all enemies, and enhances his next Basic ATK to Nectar Blitz.
The Besotted state makes targets receive #1[f1]% more Break DMG. Every time a Besotted target gets attacked by an ally, the attacking ally's HP is restored by #2[i].
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