Yveltal, World Destroyer

Flying, deathtouch
Oblivion Wing — Whenever Yveltal, World
Destroyer deals combat damage to a player,
destroy all other nonland permanents. You gain 1
life for each creature destroyed this way.
Foul Play — Whenever Yveltal becomes the
target of a spell or ability an opponent controls,
that spell or ability's controller discards a card. If
they can't, they lose 3 life.