Glassworks // Shattered Yard (DSK-137) - Duskmourn: House of Horror Foil

Glassworks

When you unclock this door, this Room deals 4 damage to target creature an opponent controls.

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Shattered Yard

At the beginning of your end step, this Room deals 1 damage to each opponent.

When you unlock this door, this Room deals 4 damage to target creature an opponent controls.
(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.
(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.)