Forest of Might

({t}: Add{r} or {g})
Forest of Might enters the battlefield tapped.
Forest of Might enters the battlefield with a grow counter on it.
{x}, {t}: Put X grow counters on Forest of Might.
{r}{g}, Remove X grow counters from Forest of
Might, {t}: Creatures you control get +X/+X,
trample, and haste until end of turn.