Diablo III: Reaper of Souls

No One Can Stop Death The lords of hell rage within the Black Soulstone, their souls screaming for vengeance and release. Before the artifact can be sealed away forever, Malthael-Angel of Deathmanifests in the mortal realms with a deadly new purpose: to steal the Black Soulstone and bend its infernal power to his will. So begins the end of all things... (gamefaqs)