Misty Flagstones
Land (Rare)

Misty Flagstones enters the battlefield tapped.

Tap: Add W or U to your mana pool.

Sacrifice Misty Flagstones: Add W or U to your mana pool.

WU: Misty Flagstones becomes a 2/1 blue and white Wizard Faerie creature until end of turn. It's still a land.

Allan Avon