Duke's Cerulean Cape. Description: This royal blue cape shows the world that you are an arena fighter as well as a powerful hero to be respected. This item requires a Dragon Amulet. Location: Oaklore > Sir Plus Capes & Wings. Price: 25 Gold. Sellback: 3 Gold. Level: 2. Element: Water. Effect: Energy +1. Rarity: 2. Item Type: Cape. Equip Spot: Back. Category: Armor. Needs Dragon Amulet? Yes.