Hero (his actual name, which is Greek) first appeared as a member the superhero team The Ravers founded by Superboy. He was a frequent regular of the Event Horizon, an intergalactic rave that featured hipsters and partiers from all over the galaxy. Though at first it was unclear what, if any, powers he possessed, it became apparent that his vest (later revealed to be the "Achilles Vest") emitted a force field that protected him from most forms of physical assault. He was somehow able to steal this from the lair of the Scavenger, a villainous packrat who stockpiles various items and gadgets from the DC Comics universe.