Spirit of the Forest

( {t}: add {g})
As you control four or less forests, Spirit of the
Forest is not a creature. Vigilance, shroud,
defender.
{t}: Add {g} for each tapped forest you control
other than Spirit of the Forest, activate this
ability only if Spirit of the Forest is a creature.
Spirit of the Forest's power and toughness are
each equal to the number of forests you control.