Whenever a non-black creature dies, put a husk counter on Necropolis of Azar. , Remove a husk counter from Necropolis of Azar: Create a black Spawn creature token with swampwalk (This creature is unblockable as long as defending player controls a Swamp.) named Spawn of Azar. That token has power from 1 to 3 chosen at random and toughness from 1 to 3 chosen at random.