The Arc-Powered Garb set is an armor set specific to Voltura. The set consists of six armor pieces (head, chest, legs, shoulders, gloves, boots) that must be equipped at the same time. It is unlikely you will acquire a full set prior to finishing the game or reaching level sixty. Farming levels in Fazeer's Dun'djinn (the end game) that give a +50% gear luck modifier will be your best bet in finishing up the set. Levels with an electric icon appear to count as Voltura levels. Set pieces can be acquired through the gambler.