Tranquil Flats
Land-Plains Swamp (Rare)

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

Tranquil Flats enters the battlefield tapped unless you pay B.

2W, Tap: Put a 1/1 Angel creature token onto the battlefield.

2, Tap: Target land becomes a 3/3 black Skeleton creature until end of turn. It's still a land.

Christopher Deschamps