John Henry Irons (UE-44)

"My world was destroyed. But somehow, I managed to survive. I eventually arrived here, where I learned you were here too."

- Captain Luthor to Superman

Captain Luthor is a refugee from the Original Multiverse whose planet was destroyed during the Crisis. He eventually found his way to Earth-Prime where he became an enemy of Superman just like he was in his universe.

Early Life
At some point, Luthor became an enemy of his universe's Superman and eventually learned his birth name, Kal-El, and his weakness to Green Kryptonite.

The Crisis
Luthor's universe was destroyed during the Crisis along with the rest of the multiverse but he somehow managed to survive and make his way to Earth-Prime.

Facing Superman
Once on Earth-Prime, Luthor began to prepare for a confrontation with Superman by building up his reserve of kryptonite and formulating a plan whereby he would attack nuclear power plants to test the abilities of this earth's Superman.

After attacking two such power plants, Luthor lured Superman into a trap at a third station to further test his abilities. This battle eventually led to Earth's atmosphere where Luthor stabbed Superman in the chest with a kryptonite blade, leaving him to fall to the planet's surface. However, Superman soon pulled the blade out of his chest and flew back to Smallville to help his sons.

Luthor later returned to his base of operations and began planning his next move as well as searching for more kyptonite as he had used his last shard in the previous encounter.

Powers

 * Powers from his Exosuit: Luthor's exosuit gives him various powers such as enhanced durability, super strength and flight.
 * Enhanced Durability: Luthor's exosuit gives him enhanced durability which he used to fight Superman in Earth's atmosphere.
 * Flight: Luthor's exosuit allows him to fly which he used to fight and get away from Superman.
 * Super Strength: Luthor's exosuit gives him super stength as shown when he punched Superman to the ground from in the air.

Current Equipment

 * Exosuit: Luthor wears a high-tech exosuit that gives him super strength, enhanced durability and the ability to fly.

Former Equipment

 * Kryptonite Blade: Luthor used a retractable kryptonite blade to stab Superman but lost it once he pulled it out.

Trivia

 * This version of Luthor has black skin in contrast to his usual appearance as a caucasian male.