Ganon, Scourge of Hyrule

Reach, Indestructible, Double strike
Protection from Blue, Black, and Red
At the beginning of your upkeep,
sacrifice a permanent you control other than
Ganon, Scourge of Hyrule. If you can't, you
lose the game.
"Once Ganon enters the Light World, it is unlikely
that anyone can stop him."