Smoldering Aqueduct
Land (Rare)

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

Tap: Add U or R to your mana pool. Smoldering Aqueduct deals 2 damage to you.

Tap, Sacrifice Smoldering Aqueduct: Add 2 to your mana pool.

James Critchlow