Gaunter O'Dim

+1: Create a 1/1 black Spirit token. Add one mana of any color to your mana pool. Put a +1/+1 counter on target creature. You lose 2 lifes.
-1: Put a debt counter on target creature. As long as it has a debt counter on it, it gets +2/+2 and can't attack or block. You lose 2 lifes.
-10: You may sacrifice five creatures. If you do you lose 10 lifes, then each opponent loses 20 lifes.