Kel-Orn, the Obedient

0: Reveal the top card of your library. You may play that card this turn.
-1: Put a -1/-1 counter on each creature you control. Draw 3 cards.
-7: Create a 6/6 Vortex Demon creature token for each card in your library. Exile Kel-Orn, the Obedient.