Gallagher, an Abundance character in Honkai: Star Rail, brings a distinct healing approach that sets him apart from traditional healers in the game. His healing prowess is tied to his Trace level, allowing for easier stat optimization without strict dependencies on HP or ATK.

Players can customize Gallagher with offensive or defensive stats, but maximizing his Break Effect stands out as a key strategy. By accumulating Break Effects, Gallagher can significantly boost his Outgoing Healing, reaching up to a 75% bonus based on his Break Effect level.

8 Multiplication

Upon unlocking his fourth Ascension Trace, Gallagher gains a 100% action boost post-Ultimate use, enhancing his Basic Attack damage and debuffing enemy ATK and Toughness by 90. The Multiplication Light Cone further accelerates his action by 20% after each Basic Attack, granting him exceptional mobility in battles.

7 Warmth Shortens Cold Nights

For teams needing more healing support, the Warmth Shortens Cold Nights Light Cone turns Gallagher into a dedicated healer. This cone boosts team healing with every Skill and Basic Attack, scaling with each character's max HP.

6 Quid Pro Quo

Gallagher's Ultimate can trigger the Quid Pro Quo effect, granting 32 Energy to low-energy allies consecutively. While potent, this ability necessitates allies to have 50% Energy or less for activation, adding a tactical element to its usage.