The Great Tree

When the Great Tree enters the battfeild, you
may pay {4}, if you do, create three 0/1 Squirrel Plant tokens with "{t}: Add {c} to your manna pool." and The Great Tree enters the battlefield tapped.
{5}{t}: Add {c} to your manna pool for each Squirrel permanent you control.
{w}{u}{b}{r}{g}{t}: Add one manna of any color to your manna pool for each Squirrel permanent
you control.