Emrakul, the Eldritch Moon

When you cast Emrakul, the Eldritch Moon, you may pay {w}{u}{b}{r}{g}. If you do, exile all lands
you don't control, and Emrakul enters the battlefield with five +1/+1 counters on it.
Flying, hexproof
You may play land cards that were exiled by Emrakul.
An evil as vast as the moon itself.