Atlas is a powerful enemy of Superman and a villain in DC comics.
In ancient times in a faraway land, the mighty hero Atlas became a champion of the oppressed in his struggle against the despotic King Hyssa. As a youth, Atlas had been one of the peaceful people of the Crystal Mountains until King Hyssa's raiders attacked the village. Burning Atlas' home to the ground, killing his father, and capturing everyone he knew or cared about, Hyssa unwittingly made himself a powerful enemy that would pursue him for years.
Wearing his magic crystal pendant, Atlas escaped the slavers and found a new home with a kind-hearted man named Chagra. It was not long before Chagra realized the boy possessed incredible strength. He became Atlas' manager, and accompanied him on his journeys, watching the young hero rescue citizens and defeat evil princes. Finally arriving in the capital city of Hyssa, Atlas touted his strength in the marketplace, where he fought challengers one-on-one. it is unknown whether Atlas eventually succeeded in taking his revenge on the sinister King Hyssa. What is known is that his heart grew dark and villainous.
Years into his reign, Atlas was pulled through time by Project 7734's Time Pool technology, at the behest of General Samuel Lane, who wanted Atlas to work for him against alien threats like Superman. Atlas was distrustful at first, but ultimately agreed. He fought Superman to a standstill, and is Project 7734's go-to asset whenever Lane wants someone "roughed up".