Saltcrusted Everglades
Land-Plains Swamp (Rare)

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

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

2: Saltcrusted Everglades becomes a 2/2 black Rat creature until end of turn. It's still a land.

Steve Moeller