Josiah Power was formerly a lawyer until he was fired after the Dominators' Gene Bomb activated his metagene, revealing him to be a metahuman.
Working his way through a short depression and other problems, Josiah eventually found a way to combine his old skills and newfound abilities.
Josiah and the rest of the Power Company are injured during a battle with Doctor Impossible and a group of villains using technology from New Genesis.
During a later discussion, Hal Jordan worriedly remarks that if the villains were able to defeat someone as powerful as Josiah, then the members of the Justice League are going to have a big problem on their hands.
[4] Josiah Power is a metahuman who can transform into a large, rock-skinned form with superhuman strength and durability.