(: Add or to your mana pool.)
Green River enters the battlefield tapped unless you control three or more colorless permanents.
: Green River becomes a 2/2 green Squirrel creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Green River becomes a 2/2 green Squirrel creature until end of turn. It's still a land.
