Tranquil Marsh enters the battlefield tapped unless you control two or more creatures.
, : Add to your mana pool.
: Tranquil Marsh becomes a 2/1 white and black Angel Cleric creature until end of turn. It's still a land.
, 
: Add 
to your mana pool., : Add to your mana pool.: Tranquil Marsh becomes a 2/1 white and black Angel Cleric creature until end of turn. It's still a land.
