Yaawg S'aboth

+2: Until end of turn, target creature you control gets +2/+1 and gains flying. It becomes a Demon in addition to it's other types.
-3: Put the top 15 cards of your library into your graveyard. You gain 15 life. If you have less life than your starting life total, draw two cards.
-6: Exile your hand, then put all cards from your graveyard into your hand. You have no maximum hand size for the rest of the game.