Abandoned Ruins
Land-Plains Swamp (Rare)

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

When Abandoned Ruins enters the battlefield, return a land you control to its owner's hand.

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

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

Steve Argyle