Scavenging Ghoul

At the beginning of each end step, put a "corpse" counter on the Necrophage Ghoul for each creature that died this turn. Remove a "corpse" counter from the Necrophage Ghoul: Regenerate the Necrophage Ghoul (The next time this permanent would be destroyed this turn, it isn't. Instead, tap it, remove all damage from it, and remove it from combat.)