After Tata and Nene survived a great flood, their consumption of a fish angered this god, so he cut off their heads and stuck them on their asses, thereby creating the first dogs.  
One of his aspects was a god of feasts known as "Two Reeds," while another of his aspects was a god of the polar star who invented fire by using the heavens as a drill.  In one legend, his foot was bitten off by a sea-monster named Cipactli.  After Tata and Nene survived a great flood, their consumption of a fish angered this god, so he cut off their heads and stuck them on their asses, thereby creating the first dogs.  Earlier, he ruled over a race of giants before being struck into the sea, whereupon he devoured the giants and animal-like humans.  His wife was the hairy maize-goddess Xilonen, though he once seduced the flower goddess Xochiquetzal because he thought he would make a better companion for her than her husband.  A son of Coatlicue, he was god of the north, of material things, and of night.  FTP name this Aztec deity who carried an obsidian smoking mirror and is known for tempting men with evil.
One of his aspects was a god of feasts known as "Two Reeds," while another of his aspects was a god of the polar star who invented fire by using the heavens as a drill.  
Tezcatlipoca