Ashiok, Monster Shaper

+2: Put the top two cards of your library into your graveyard. Gain life equal to half of the largest cmc of cards in your graveyard, rounded down.
-2: Return target creature from your graveyard to your to the battlefield with last strike and "This creature cannot block".
-7: Exile all permanents. Count up the CMCs of cards in exile, then search your library for that many permanents and put them onto the battlefield.