The Mechanar Mechano-Lord Capacitus Cache of the Legion Nethermancer Sepethrea Pathaleon the Calculator Mechanar Gatewatchers Gatewatcher Gyro-Kill Gatewatcher Iron-Hand The Cache of the Legion is a container found in The Mechanar. It requires the (Item #30438) to open, which is created by combining (Item #30436) and (Item #30437). These crystals are dropped by the each of the Mechanar Gatewatchers, Gyro-Kill and Iron-Hand.