Bellowing Elemental

Megamorph {3}{g} (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 Bellowing Elemental enters the battlefield
or is turned face up, target creature gets +2/+2
and gains trample until end of turn.