Prismatic Door

Wondrous item, Legendary

Upon activation, this open doorway way be filled with a dazzling chromatic field. Passing through the doorway when it is active in this way has the same effect as passing through a Prismatic Wall spell. A creature may pass through this doorway safely by speaking the door's command word prior to walking through it. The doorway remains activated until the layers of the door are destroyed, dispelled, suppressed, or after 24 hours have past. This property cannot be used again for 2d6 days.