Deathwing, the Destroyer

Flying, Haste, Trample
When Deathwing, the Destroyer enters the battlefield, each player sacrifices half the permanents he controls rounded up.

"Pain, agony, my hatred burns through the cavernous deeps. The world heaves with my torment. Its wretched kingdoms quake beneath my rage. But at last, the whole of Azeroth will break, and all will burn, beneath the shadow of my wings."