[+1]: Look at the top two cards of your library. Exile one of them and put the other into your hand.

[-2]: Create two 1 1 black Nightmare creature tokens with At the beginning of combat on your turn, if a card was put into exile this turn, put a +1 +1 counter on this creature.

[-7]: Target player exiles the top X cards of their library, where X is the total mana value of cards you own in exile.