Jack's Dog Zero

+1: Create X Pumpkin Tokens (when X is the number of Creatures in the Graveyard.)
-2: sacrifice Creatures you control, then Opponent sacrifices 2 Creatures they control, or lose 4 life.
-6: Sacrifice 5 Pumpkin tokens, gain 8 life, Or Sacrifice Jack's Dog Zero Create a emblem give Creatures you control Lifelink,vigilance