The Aztec gods can get a little complicated, especially regarding their histories (sometimes they can have many, many different back stories), their names (a few of them have over twenty), and their associations. A few gods are so complex that they different aspects that take on the form of entirely separate entities.
So here's a list to help keep it simple for you.
If you want more information, or fancy wading through a few websites to pick a divinity I haven't listed here,
the wikipedia page on Aztec gods actually doesn't do a bad job of sorting them out, and
Encyclopedia Mythica is a fine site to poke around too. You may come across some information that appears to be at odds, but don't worry too much about it! There are so many sources that no one sticks to one story.
**CLAIMED FOR IAGO -
Tezcatlipoca (Lord of the Smoking/Obsidian Mirror): An ancient, powerful deity that helped create the world. Associated with fate, destiny, the night, kings/rulers, sorcerers, war, temptation, pretty girls.....the list goes on.
He's a mischief maker, forever locked in a feud with another old god, Quetzalcoatl. Tezcatlipoca is said to be a handsome, charming, and enjoys tempting humans in order to punish wickedness and reward goodness.
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Itztli: The god of stone, particularly stone knives, and of sacrifice. Itztli acts as a servant to Tezcatlipoca.
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Tlahuizcalpantecuhtli (Dawn Lord): Deity associated with Venus, or the Morning Star.
**CLAIMED FOR FOUR -
Tlaloc (He Who Is the Embodiment of Earth): Another ancient deity that helped create the world. He's the god of water, rain, agriculture.
Tlaloc is usually depicted with
goggle-like eyes and fangs. He's a terrifying god, and occasionally will demand the sacrifice of children. He rules over the watery paradise kingdom of Tlalocan, the place where drowned souls and people who have been struck by lightning go, and his consort is the goddess Chalchiuhtlicue.
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Huixtocihuatl (Salt Lady): Goddess of salt and salt water. She's the elder sister of Tlaloc.
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Chalchiuhtlicue (She of the Jade Skirt): Goddess of springs, rivers, lakes, and the sea. She's the wife of Tlaloc and is also associated with love, beauty, and youth.
**CLAIMED FOR ARMAND (THE VAMP) - Ayauhteotl: The Goddess of twilight mist. Associated with fame and vanity.
**CLAIMED FOR ARTHAS - Iztacoliuhqui (Obsidian Blade Curl): Deity of frost, snow, and cold. Associated with snow-capped peaks and mountains.
**CLAIMED FOR VELMA- Chalchiuhtotoliq (Precious Night Turkey) or Chalchiutotolin - god of pestilence and mystery. His name is Precious Night Turkey. Really.
**CLAIMED FOR LAURA -
Tlazolteotl (Sacred Filth Eater): The goddess of vice, filth sexual misdeeds, disease, as well as purification, steam baths, and midwives. She's a purification goddess who forgives sins and cleanses the soul, but she's also the goddess of lechery. Basically she's a divinity with a duel nature.
**CLAIMED FOR RANDAL -
Huehuecoyotl (Very Old Coyote): The god of music, dancing, and song. He's a trickster god whose pranks usually backfire and cause him trouble, and he likes to throw parties and start fights for fun.
**CLAIMED FOR BARLET-
Patecatl: Associated with medicine, healing, and fertility, though probably linked with hallucinogens as well as he's said to have invented/discovered peyote.
Patecatl is married to Mayahuel and the father of the Centzon Totochtin, the Four Hundred Rabbits, or the divine rabbit party gods.
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Mayahuel (Maguey Plant): Goddess associated with the maguey plant, also known for fertility and nourishment. She's married to Patecatl and is the mother of the Four Hundred Rabbits, and because she has so many children she's said to have a lot of boobs to feed them with.
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Tepoztecatl, sometimes referred to as Ometochtli (2 Rabbit): said to have invented pulque (an alcoholic beverage made from the maguey plant), and was the god of drunkenness and fertility. He's one of the Centzon Totochtin.
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Xipe Totec (Our Lord the Flayed One): An old divinity of vegetation (especially seeds), and of death and rebirth. He flays/sacrifices his own skin in order to feed humanity. He's also responsible for sending disease to humanity - blindness, sickness, plague.
Xipe Totec is a "mysterious" god that wears
his own flayed skin, and a popular sacrifice to him was to flay a victim alive and wear their skin around until it physically rotted off the body.
**CLAIMED FOR COBRA COMMANDER lol -
Xilone (The Hairy One) or Chicomecoatl (Seven Snakes): A young goddess of maize. She's also the goddess of nourishment and plenty.
**CLAIMED FOR SEVEREN -
Chantico (She Who Dwells in the House): A goddess who famously broke a fast by eating paprika with fish, and was turned into a dog as punishment for it. She's the goddess of volcanoes, the hearth fire, and precious things. She's also fiercely possessive of said precious things, and is known for doing all sorts of terrible things to people who touch her stuff.
**CLAIMED FOR OMEGA -
Xiuhtecuhtli (Lord of Fire/Turquois): an old god of fire, day, and heat. He was also the lord of volcanoes, the personification of life after death, warmth in cold, light in darkness and food during famine.
**CLAIMED FOR KIRK -
Xochipilli (Flower Prince): A handsome god associated with flowers, plants (hallucinogenic ones), song, dance, and poetry. He carries a sharp stick that he uses to stab human hearts (aka to make them fall in love).
**CLAIMED FOR ADRIC - Ixtlilton (Little Black One): The deity of medicine, healing, feasting and games. Ixlilton is the brother of Xochipilli and the goddess Xochiquetzal.
**CLAIMED FOR SHEGO -
Xochiquetzal (Flower Quetzal/Feather): She's the goddess of love and female sexuality, as well as flowers and grains. She's also the patroness of weavers, prostitutes, pregnant women, and birth.
Xochiquetzal is the twin sister of Xochipilli.
**CLAIMED FOR WALLY -
Yacatecuhtli (Lord of the Nose): Deity of merchants, traders, and travelers
There are also other deities that are related to Coyolxauhqui (those who aren't her 400 brothers, Huitzilopochtli, Coatlicue, or Mixcoatl), but won't be as traumatic if brought to the Barge. (Traumatic for her, not for you.)
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Itzpapalotl (Obsidian/Clawed Butterfly): Skeletal warrior goddess of fire. Associated with paradise and birds. A total badass.
Itzapapalotl is the mother of Mixcoatl, the god of the Hunt and the Heavens, which makes her the grandmother of Coyolxauhqui.
**CLAIMED FOR COSTIGAN -
Xolotl: God associated with lightning, death, deformity, and fire, as well as the patron god of the sacred ballgame. He also aids the dead on their journey to the underworld.
He's the twin of Quetzalcoatl (as well as another personification of Venus) and brother to Coyolxauhqui.