Ancient Stormdrake

Flying
Other Drakes you control get +1/+1.
Megamorph {7}{u}{u} (You may cast this card face down as a 2/2 creature for 3. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When ~ is turned face up, create three 2/2 blue Drake creature tokens with flying.