(: Add or to your mana pool.)
Rootbound Coast enters the battlefield tapped.
: Rootbound Coast becomes a 2/2 green and blue Treefolk creature with trample until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Rootbound Coast becomes a 2/2 green and blue Treefolk creature with trample until end of turn. It's still a land.
