(: Add or to your mana pool.)
River Rainforest enters the battlefield tapped unless you pay .
: River Rainforest becomes a 2/2 blue Merfolk creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.).
: River Rainforest becomes a 2/2 blue Merfolk creature until end of turn. It's still a land.
