Sacred Pools
Land-Plains Island (Rare)

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

Sacred Pools enters the battlefield tapped.

W, Tap, Sacrifice Sacred Pools: Prevent all combat damage that would be dealt this turn.

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

Kev Avon