Source: armagideon-time.com
2. Jamm
Whoa dude, tubular! Radical! No, BAD-ical! Skateboarding! Ugh…okay, that’s enough of that.
This is Jamm. I hate him. I hate him SO MUCH.
Jamm was a normal skater dude, going about his loser-y ways on earth in the 20th century, until he was attacked by Angon, a parasite who also activated Edge. So it seems he has a taste for dudes who shop at Spencer’s Gifts, despite not being thirteen.
So Jamm gained superpowers. The power of…MIND CONTROL!!!!! He then bumbled into Legion of Superheroes member Timber Wolf, and accidentally got warped into the far future of the 30th century. There, he used his powers to force the Legion to give him a tour of the future. He also used his powers to make women interested in him, which would be sexual assault verging on rape if he went any further with it. Great.
So the creepy little s**t manipulated the Legion of Superheroes until he almost got everyone killed, at which point he released them from his control. They fixed the situation, called him out on being a creep, and abandoned him back in his own time, with the threat that they would come back if he ever did anything like that again. Good. Weirdo.

