Shelldock Flats
Land-Island Swamp (Rare)

(Tap: Add U or B to your mana pool.)

When Shelldock Flats enters the battlefield, you lose 2 life unless you reveal a basic land card from your hand.

1, Tap: Target land becomes a 2/2 blue Wizard creature until end of turn. It's still a land.

Tap, Sacrifice a Swamp: Add BB to your mana pool.

Greg Chan