Deathly Aqueduct
Land (Rare)

Deathly Aqueduct enters the battlefield tapped.

Tap: Add B to your mana pool. If you played a land this turn, Add U to your mana pool instead.

2: Deathly Aqueduct becomes a 2/2 blue Shapeshifter creature until end of turn. It's still a land.

Allan Chippy