Copperline Creek
Land (Rare)

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

Tap: Add G to your mana pool. If you played a land this turn, Add U to your mana pool instead.

U, Tap, Sacrifice Copperline Creek: Target player draws two cards, then discards two cards.

Eric Staples