For 10 points, name this feathered serpent god worshipped in Aztec mythology.
The wind aspect of this god fell in love with the goddess of the maguey plant. This god immolated himself after being tricked into drunkenly breaking his celibacy with a priestess. This god's dog-headed, skeleton-bodied twin brother assisted him when he created the humans of the fifth world cycle by gathering the bones of the dead from Mictlan and sprinkling them with his own blood. This rival of Tezcatlipoca sailed East on a raft made of serpents and was expected to return in a One Reed year, which allegedly caused an emperor to mistake the conquistador Hernán Cortés for this god. For 10 points, name this feathered serpent god worshipped in Aztec mythology.
The wind aspect of this god fell in love with the goddess of the maguey plant.
Quetzalcoatl [prompt on "Ehecatl" until "exile," do not accept afterwards]