Wallace, the Ablator

Whenever Wallace, the Ablator attacks or blocks,
put a -1/-1 counter on Wallace, the Ablator.
{t}{x}{g}{p/g} Remove X -1/-1 counters from Wallace,
the Ablator.
Morph {2}{p/g}{p/g} (You may cast this card face down
as a 2/2 creature for {3}. Turn it face up any time
for its morph cost.)