Dark Fey Key
A Dark Fey Key is used to unlock a Campaign Chest at the end of certain dungeons in the Sharandar Campaign. The Leprechaun will grant one a day via the quest Have a Key! and will also sell additional ones for 1 , and 10 . And, can be purchased in the Sharandar Campaign from Thradisar Starwise (the New Sharandar Store) for 10.