About an hour into taking Diablo 3's new Necromancer class for a spin, I encountered a turgid, hulking monster called a Grotesque. I had already massacred several of the small bats preceding it, and by using my class ability Corpse Explosion, I did enough damage to the Grotesque for it to inflate and rupture. Out of its body poured wormy parasites. And I killed them by making the Grotesque's corpse explode, too.