Blood Boil

Feats

Whenever a hill giant bloodcaller uses its wrack ability, it spills boiling blood in a 15-foot radius around the target. All enemies within range, including the target, gain a stack of this effect until the end of combat (up to a maximum of 5 stacks) and take damage equal to 1d6 per stack of this effect. This damage is untyped and ignores damage reduction.

Blood Boil — Feats | Pathfinder: WotR Database