Greenhouse // Rickety Gazebo - Duskmourn: House of Horror - 181

Enchantment — Room

Mana Cost: {3}{G}

When you unlock this door, mill four cards, then return up to two permanent cards from among them to your hand.
(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.)

Uncommon · Duskmourn: House of Horror · #181 (DSK)

Illustrated by John Di Giovanni