The god of frost and of the obsidian blade, he was once a beautiful and handsome dawn god, Tlahuizcalpantecuhtli until Tonatiuh came along. The sun god refused to be moved by the god of dawn and ordered sacrifices. Demanding sacrifices with such arrogance, the god of dawn fired an arrow into Tonatiuh. The sun god deflected the blow and fired the arrow back in interest to see what would happen. The god was turned into stone when struck. From then on, he was transformed into a god of frost, justice, punishment and human misery. Izlacoliuhqui presides over crop-killing frost and blinded justice.
Children of Itzlacoliuhqui in rare cases are able to influence their powers of the cold so great that he/she can even strike them in their hearts. They are able to control their opponent's morale and willpower making them stop on their tracks and fall into a state of utter moral crisis. The user can cool any heated thoughts of violence and spread numbness and a sense of self-hatred towards them.