John Henry Irons (UE-44)

"To hell and back."

- Captain Luthor and Sam Lane

Captain Luthor, nicknamed The Stranger by Lois Lane, was a rebel against Superman and later an enemy of Superman of Earth-Prime.

Early Life
At some point, Luthor joined the resistance against Superman and was able to gather information about Superman's real name as Kal-El as well as his weaknesses.

Superman's Attack
Later in his life, he fought against Superman and his colleagues including General Sam Lane were killed during the attack.

Soon, he was able to travel to Earth-Prime during his home universe's destruction.

Facing Superman of Earth-Prime
Once on Earth, 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 ship 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 Warsuit: Luthor's warsuit gives him various powers such as enhanced durability, super strength and flight.
 * Enhanced Durability: Luthor's warsuit gives him enhanced durability which he used to fight Superman in Earth's atmosphere.
 * Flight: Luthor's warsuit allows him to fly which he used to fight and get away from Superman.
 * Superhuman Reflexes: Luthor was able to keep up with and dodge Superman's attacks at superhuman speeds.
 * Superhuman Speed: Luthor's warsuit enables him to travel at superhuman speeds as shown when he flew around the globe.
 * Superhuman Strength: Luthor's warsuit gives him super stength as shown when he punched Superman to the ground from in the air.

Abilities

 * Bilingualism: Luthor is able to fluently speak English and Kryptonese.
 * Skilled Combatant: Luthor is a skilled combatant as he was able to effectively fight and injure Superman.
 * Tactician: Luthor is a skilled tactician due to his experience creating schemes against Superman.

Current Equipment

 * Warsuit: Luthor wears a high-tech exosuit that gives him super strength, enhanced durability and the ability to fly and also protects him from Superman's heat vision and freeze breath.

Former Equipment

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