Cthulhu, Lord Of All

+2: Exile up to 3 target permanents. Other creatures get -2/-2
0: Create two 2/6 Black Cultists. If you control 4 or more Black permanents, create two more 2/6 Black Cultists
-13: Each player discards all of their cards in hand. If a player discarded a noncreature, non planeswalker spell, that player wins.