Ashiok, Reaper of Dreams

+1: Copy target instant, sorcery, or enchantment spell in an opponent's graveyard. You may cast that copy without paying its mana cost.
-X: Target player reveals cards from the top of their library until their reveal X minus 3 land cards. Then they put those cards into their graveyard
-7: Exile all cards in target opponents library, then they shuffle all cards in their graveyard back into their library.