This ornate key is made mainly of ivory and silver with some diamonds. It is quite exquisite. While attuned it holds a single charge. If you are attuned to the key and holding it you can spend the charge to cast the spell Mordenkainen's Magnificent Mansion as an action instead of the usual casting time. You may choose the end the spell early as an action. The spell will also end early if you become unattuned from the key. Once spent the charge recovers after 24 hours.

Notes: Creation, Utility