Sunken Wastes
Land (Rare)

Sunken Wastes enters the battlefield tapped unless you control three or more nonbasic lands.

1, Tap: Add UU, UB or BB to your mana pool. Sunken Wastes deals 1 damage to you.

3: Sunken Wastes becomes a 2/2 black Zombie creature until end of turn. It's still a land.

Eric Critchlow