In one of the Aztec accounts of creation, Quetzalcoatl and Tezcatlipoca joined forces to create the world. Before their act there was only the sea and the crocodilian earthmonster called Cipactli. To attract her, Tezcatlipoca used his foot as bait, and Cipactli ate it. The two gods then captured her, and distorted her to make the land from her body. After that, they created the people, and people had to offer sacrifices to comfort Cipactli for her sufferings. Because of this, Tezcatlipoca is depicted with a missing foot.
Disclaimer: I'm not Tezcatlipoca nor do I own the rights to anything found in this journal. I'm also in no way affiliated with the pb, Wes Bentley. This is strictly for role playing fun tiems.