Ross Richman found the amulet that gave him his powers in a fallen meteor and becomes a monsterious golem called Hardrock. He gave in to peer pressure and let his friends make him use his powers to steal and vandalize. Superboy
convinced him to stop doing so. Hardrock usually hangs out with the Ravers
Recently, Hardrock had been captured and forced into the Darkside Tournament
. Hardrock returned and was taken to Titans Tower
for shelter by Miss Martian
. He couldn't join the Teen Titans
because he wanted to return to his family.
It was shown that Hardrock is a member of Lex Luthor
's Titans Army in Titans Tomorrow Today story-arc.