Aztek is a fictional character, a superhero in the DC Universe. Based out of the fictional Vanity City, Aztek is the champion of the Aztec god Quetzalcoatl. The character first appeared in Aztek, The Ultimate Man #1 in August 1996, created by Grant Morrison and Mark Millar. Following the short run series, Aztek appeared in several issues of JLA also written by Morrison.
Uno is raised from childhood by a secret organization named the Q Society to be the champion of the Aztec god Quetzalcoatl to battle their enemy, the Aztec god, Tezcatlipoca. He is given a magical suit of armor that bestows many abilities, complementing Uno's peak human mental and physical abilities. .
Aztek later joins the Justice League , but resigns when it is revealed that one of the mysterious benefactors of the Q Society is supervillain Lex Luthor. He is later blinded helping the League save the Earth in a battle against the planet-destroying machine Mageddon, (apparently, the 'Tezcatlipoca' that the cult was referring to all along.) Aztek, ultimately sacrifices himself to allow Superman the chance to destroy Mageddon/Tezcatlipoca, during the World War III.
Aztek has peak human physical and mental conditioning. He wears an ancient helmet and armor (powered by a "four-dimensional mirror"), from which he derives flight, infrared and X-Ray vision, invisibility, intangibility, bodyheat camouflage, entrapment nets, plasma beams and density manipulation, as well as augmenting his peak physical abilities to superhuman levels. The four-dimensional power source could self destruct in a highly explosive manner.
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Official Site: D.C Comics
Links: Wikipedia D.C Database Project Un. Guide to D.C Universe