Hellheart is an 
Arcane Item in Total War: Warhammer III. It is available to 
Ogre Kingdoms.
Description[]
By forcing this ichor-soaked, Ruin-imbued heart of a foul Chaos Spawn down, the Butcher may create a vortex of magical anarchy that beguiles magic-using adversaries.
Effects[]
Bound spell: "Hellheart"
