Bog Aqueduct
Land-Island Swamp (Rare)

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

At the beginning of your upkeep, Bog Aqueduct deals 2 damage to target creature you control.

B, Tap, Pay 1 life: Put a 1/1 black Cleric creature token onto the battlefield.

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

Steve Deschamps