(: Add or to your mana pool.)
River Plain enters the battlefield tapped unless you pay 3 life.
: River Plain becomes a 0/4 white and blue Merfolk creature with defender until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: River Plain becomes a 0/4 white and blue Merfolk creature with defender until end of turn. It's still a land.
