Yveltal, Deathbringer

Hexproof, Flying, Lifelink.
You can't cast spells.
At the beginning of your upkeep, destroy all other permanents you control.When Yveltal, Deathbringer deals damage to a player, put an "annihilation" counter on Yveltal. These counters can't be removed. When Yveltal has 5 "annihilation" counters on him, you win the game.