Grave Plain
Artifact Land (Rare)

(Grave Plain isn't a spell.)

At the beginning of your end step, if you didn't cast any spells this turn, Grave Plain deals 1 damage to you.

1, Tap: You may put a land card from your hand onto the battlefield.

B, Tap: Add WW to your mana pool.

W, Tap: Add BB to your mana pool.

Douglas Pollack