Al Rothstein (Earth-2)

"Atom-Smasher", as dubbed by Martin Stein, was a meta-human who shared a resemblance to Al Rothstein.

Biography
At some point, Atom-Smasher was told by Zoom that he could return home if he managed to kill The Flash. He firstly began by killing Al Rothstein, who appeared identical to him. The Flash and his associates attempted to fight back, but they could do little significant damage, so Atom-Smasher fled. The team were able to later pinpoint the meta-human's location at a hazardous waste reclamation plant. Barry went after him, attempting to stop him, but he was choked and lifted up by the gigantic man, only escaping when Atom-Smasher was momentarily distracted by the security alarms. The team for a final time caught his attention with a distress signal in the shape of a lightning bolt. Atom-Smasher happened upon The Flash, whom he chased to a nuclear power plant. The man was tricked into entering a reactor core, where he was given a dose of radiation too large for him to absorb. The Flash questioned the dying meta-human about his motives, with Atom-Smasher confessing in his final words that he was coerced by Zoom in return for a way home.

Abilities

 * Radiokinesis: Atom-Smasher was able to absorb radioactivity and harness it, even if the source of the radiation is vast distances away After absorbing the radiation, his physical parameters became significantly increased.
 * Superhuman strength: Atom-Smasher also had significantly enhanced strength compared to a normal man. He could easily lift up and throw a food stand several meters and likewise swat away full grown men with a single blow.
 * Superhuman resilience: His skin was extremely resilient, bullets ricocheting off when fired at him. He also took many of the Flash's speed blows without really being phased at all.
 * Superhuman mobility: The strength is his legs made him very fast and agile, being able to tail the Flash while he's running at super speed by running and leaping.
 * Size manipulation: Using his accumulated radiation, Atom-Smasher could increase his size to significantly bigger than normal, usually twice his own size. This allowed him to proportionally increases his strength and resilience even further.

Trivia

 * Atom-Smasher was named by Martin Stein due to his ability to absorb atomic power, as well as simply smash things.
 * It is possible that he a the version of Al Rothstein from Earth 2 that became a meta-human, with Earth 1's Al Rothstien working with radiation confirming such suspicions.

Behind the scenes

 * In the DC comics, Al Rothstein is a hero known as Atom-Smasher, hence the overt reference to their resemblance in his appearance.