Emrakul, end of all planes

Flash
You may pay {w}{w}{u}{u}{b}{b}{r}{r}{g}{g} instead to
play Emrakul. This cost can be reduced for each
color amog the cards in your graveyard down to {w}{u}{b}{r}{g}.
When you cast Emrakul, end the turn.
Flying, Vigilance, protection against instants.