Zanthrox, World Doom

Ward— 20 life, Trample, Menace
When Zanthrox, World Doom enters the battlefield, destroy all permanents controlled by your opponents and then exile all cards from their graveyards.
If Zanthrox, World Doom were to be put into a graveyard or into exile, instead exile it, lose 7 life, and put it back into play at the beginning of the next end step. (ETB effect does not trigger)