Forest of the forgotten

Forest of the Forgotten enters the battlefield tapped unless you control 5 or more basic lands.
{t}: add {b} or {g} to your mana pool.
{x}{b/g}{b/g}{b/g}, {t}: Sacrifice an untapped land and Forest of the Forgotten: Creatures you control get +X/+X until end of turn .
Only heroes and villains are remembered