Quetzalcoatl is one of the highest beings in Aztec mythology, originally a gentle god who bestows life, abundance, culture, and knowledge. In the Fate series, she is characterized by a fearsome appearance with a rotten cow motif and sacred jade jewels. She fell in love with Lucha Libre wrestling after being summoned in the past and watching it. According to Fate lore, she originally possessed numerous divinities in early times before passing them to other gods. When summoned through Chaldean summoning, she is significantly more powerful than typical Servants, though still a power-down from her original divine form. She is known for refusing sacrifice and breaking rules, distinguishing her from traditional depictions. Her rivalry with Tezcatlipoca, another Aztec creation god, is legendary throughout human history.