Spriggan 12 The Spriggan 12 (スプリガン１２ Supurigan Tuerubu) is an elite unit serving as Zeref Dragneel's (the emperor of the Alvarez Empire, under the alias Emperor Spriggan) personal guard. According to Hyberion, the members of the Spriggan 12 (dubbed "Shields") are extremely skilled and powerful Mages, all around the same level of power as God Serena: the strongest Mage from Ishgar. The Shields also appear to do whatever it is they please and roam about, being that it is extremely rare all twelve are in the same location. more...)