Merfolk Swamp enters the battlefield tapped.
: Add to your mana pool. Return Merfolk Swamp to its owner's hand.
: Merfolk Swamp becomes a 2/2 blue Fish creature until end of turn. It's still a land.
: Add 
to your mana pool. Return Merfolk Swamp to its owner's hand.
: Merfolk Swamp becomes a 2/2 blue Fish creature until end of turn. It's still a land.
