(: Add or to your mana pool.)
Tranquil Swamp enters the battlefield tapped unless you reveal a Black card from your hand.
: Tranquil Swamp becomes a 2/1 white and black Citizen Kor creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Tranquil Swamp becomes a 2/1 white and black Citizen Kor creature until end of turn. It's still a land.
