Enchantment — Room
(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
At the beginning of your end step, this Room deals 1 damage to each opponent.
  |
Duskmourn: House of Horror (DSK)
#137b, Common |
Illustrated by: Sergey Glushakov