(: Add or to your mana pool.)
Tidal Battlefield enters the battlefield tapped.
: Tidal Battlefield becomes a 2/1 blue and red Merfolk creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Tidal Battlefield becomes a 2/1 blue and red Merfolk creature until end of turn. It's still a land.
