You searched for death clutch
1. death clutch
Syntax: automatic
When an enemy is close to death, a Witch may thrust their fist inside the
enemy's chest cavity and brutally rip out their heart, resulting in
immediate death and a heart that falls to the ground for further use.
This skill works on monsters who are no more than 10 levels above you, and
the chance to successfully tear the heart out depends on the mastery in this
skill and the difficulty of the monster. Boss monsters must be below 5%
hitpoints and normal monsters below 40%. Some monsters are immune to death
clutch.