MagtheridonLevel 73 BossSideHostileTypeDemonHealth10,934,000Damage744–2,234Immune toCharm, Disorient, Disarm, Distract, Flee, Grip, Knockout, Bandage, Polymorph, Banish, Shield, Shackle, Mount, Horror, Invulnerability, Interrupt, Daze, Sapped, Enraged, Stun, SilenceLocationsMapAreaCoordsSpawnsHellfire Citadel: The Blood FurnaceThe Blood Furnace58, 421