(: Add or to your mana pool.)
River Bank enters the battlefield tapped.
: River Bank becomes a 1/1 blue and red Merfolk Cephalid creature with first strike until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: River Bank becomes a 1/1 blue and red Merfolk Cephalid creature with first strike until end of turn. It's still a land.
