Space Kook

SPOOK
{u/b}{u/b}{u/b}{u/b}, Discard a card: each player mills cards equal to Space Kooks power.
Megamorph {4}{b}{u} (You may cast this card face down as a 2/2 creature for {3}. Turn it face
up at any time for its megamorph cost and put a +1/+1 counter on it.)