Makaylu Bolas

+2: Each opponent reveals his or her hand and you select a card from each player's hand and exile that card.
-1: You may play a card exiled with Makaylu Bolas without paying it's mana cost. Then copy it with different targets if possible.
-12: Each opponent exile's the top 20 cards of his or her library. Then, you may cast up to 7 cards exiled with Makaylu bolas without paying any cost