Grindlewood Drund

When Grindlewood Drund is turned face up, add {g}{g} to your mana pool, put a +1/+1 counter on Grindlewood Drund equal to the number of
mana in your mana pool, Until end of turn, you
don't lose mana as steps and phases end.
Morph {2}{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.)