whenever a creature you control dies, draw a card.
+1: create a 2/2 black zombie creature token.
−4: each player sacrifices two creatures.
−9: each opponent chooses a permanent they control of each permanent type and sacrifices the rest.
"I know I should be more concerned. But a big, blue zombie-potamus from beyond the stars? This is what they're invading us with?" —Mileva, Boros legionnaire