Tranquil Shoal enters the battlefield tapped.
, : Add , or to your mana pool.
: Tranquil Shoal becomes a 2/2 blue Shapeshifter creature until end of turn. It's still a land.
, 
: Add 
, 
or to your mana pool.
: Tranquil Shoal becomes a 2/2 blue Shapeshifter creature until end of turn. It's still a land.
