Aatrox, The World Ender

+2: Target player exiles 2 cards from the top of their library, If one is a creature, heal for one creature's toughness.
+1: Instant and sorcery spells cost 1 colorless mana less until end of turn.
-15: Destroy all non-land permanents. Heal equal to the amount of permanents destroyed this way. On your next turn, win the game.