The AvantGyao's name comes from avant (アヴァン?), meaning innovative or original, and Gyao which comes from Gyaos' name. In the merchandises and books, the gyaos was labelled as Original Gyaos Avan (オリジナルギャオス?). Original
The AvantGyao closely resembles IrisuGyao, with a skeletal face and yellow tinted wings. It no longer has the crease in its head.