Giriko (ギリコ, Giriko) and Wan Yin (婉瑩, En'ei) are a minor ancient mamodo team who only appears once, they are last seen fighting along Penny in episode 77. As their spells are unnamed, their spells are based on Metal. Wan Yin seems to be a girl whose mind is brainwashed by Zofis, but got free once Brago burned all the ancient mamodo books, including his book.
Book burned by: Brago and Sherry Belmont
Spellbook Color: Rapeseed
Unnamed Spell: Giriko launches a metalic chainsaw like object, wich has many sections.