That brother had a name meaning  (*) "smoking mirror," and their rivalry caused this god to be exiled on a raft of snakes.
This god's twin brother had the head of a dog, and this god immolated himself for sleeping with his sister while drunk, after which he became a brother of the planet Venus. He sprinkled his own blood onto some bones in the underworld of Mictlan, and in doing so created the fifth race of man. This son of Coatlicue [COAT - lee - cue] had a rivalry with a brother who had his foot bitten off by a crocodile. That brother had a name meaning  (*) "smoking mirror," and their rivalry caused this god to be exiled on a raft of snakes. For ten points, name this white-skinned "feathered serpent" and rival of Tezcatlipoca whom the Aztecs confused with a Spanish conquistador.
This god's twin brother had the head of a dog, and this god immolated himself for sleeping with his sister while drunk, after which he became a brother of the planet Venus.
{Quetzalcoatl}