Emrakul, Devourer of Planes

Indestructible, Flying, Judgement 3 ( Whenever this creature attacks, each player sacrifices 3 lands.)
When you cast Emrakul, Devourer of Planes, Exile the top 50 cards of each player's library, then each player draws a card.
Protection from spells with converted mana cost 5 or more.
Death comes to all, some sooner than others...