Regeneration

Regeneration is a buff that heals the holder for HP equal to its stack count at the end of each turn, then reduces the stack by 1. It represents a temporary but meaningful source of healing during combat. Unlike most buffs, Regeneration actually recovers HP rather than dealing damage or providing Block.

Regeneration appears in the game as both a player-accessible effect and an enemy ability. Some enemies in Act 2 use Regeneration to recover HP between attacks, which can make dragging out fights very costly. The Watcher has access to Regeneration through certain cards, and Bites from the Vampires event also provide small amounts of healing per attack. In general, Regeneration is most valuable in longer fights where its cumulative healing adds up significantly.