In gnostic cosmology, Abraxas is the rooster-headed, serpent-legged god who created the material world. The letters of his name represent the 7 planetary spheres, and he’s often found on magick amulets. He was later demonized by Christians and appears in the Dictionnaire Infernal.
A wild witches’ sabbath from the book of black magic, “Le serpent de la Genèse” (The Serpent of Gensis) Volume 2, by Stanislas de Guaita, 1920. Source: Embassy of the Free Mind