Underground Ruins
Land-Island Swamp (Rare)

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

Underground Ruins enters the battlefield tapped unless you control two or more Wizards.

BB, Tap, Sacrifice Underground Ruins: Put a -1/-1 counter on target creature.

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

Rebecca Prescott