Deathwing, the Destroyer

When Deathwing, the Destroyer enters the battlefield, if you cast it from your hand, each player sacrifices four lands. Deathwing deals damage equal to its power to each creature and each planeswalker.
Flying, indestructible, trample

"I. Am. Deathwing. The destroyer, the end of all things. Inevitable, indomitable, I am the cataclysm!"