Personal Info:
Real Name: Jax-Ur
Also Known As: No known Alias
Place Of Birth: Krypton
First Appearance: Adventure Comics Vol.1 #289 (1961) Silver Age Villain
Known Associates: General Zod, Ursa, Non, Nam-Ek, Va-Kox, Xa-Du, Kru-El, Faora, Jer-Em, Nadira, Az-Rel, Quex-Ul
Group Affiliation: Phantom Zoners
Base Of Operations: The Phantom Zone
Grudges: Superman
Creators: Otto Binder and George Papp
Gallery: Click
Enhanced Abilities: Jax-Ur has vast super human strength, super-speed and endurance.
Invulnerability: Jax-Ur is practically invulnerable to any form of physical or energy attack.
Super-Breath: Jax-Ur can freeze a target with his breath or create strong gusts of wind.
Super-Hearing: Jax-Ur has the ability to hear any sound at any volume or pitch.
Super-Vision: Jax-Ur has X-ray, Electro-magnetic, Microscopic, Infrared and Telescopic visions.
Flight: Jax-Ur is able to fly.
Heat Vision: Jax-Ur has the ability to fire beams of intense heat at a target by looking.
Immortality: While he existed in the Phantom Zone, Jax-Ur was effectively immortal, and would not age or die.
Super-Hypnosis: Jax-Ur has the ability to hypnotise an opponent and control their mind through the power of suggestion.
Jewel Kryptonite: Jax-Ur has access to Jewel Kryptonie which was created from the remnants of Krypton's Jewel Mountains. It allowed the Phantom Zoners to heighten and focus their low-level mental abilities in order to affect the universe outside of the Phantom Zone.
Jax-Ur was a scientist on Krypton who originally worked closely with Jor-El developing early Kryptonian rockets, including the early prison capsules. The first capsule was sabotaged, ironically, by a matter-dissolver ray secretly developed by Jax's grandfather Vas-Ur. After that failure, Jax-Ur still attended Jor-El and Lara's wedding, but started his own competing and illegal rocketry program, head-quartered in the Jewel Mountains.
He developed a nuclear missile and decided to test it against a giant meteor in space. If this test proved successful, Jax-Ur would then commence the build-up of a massive, privately-held nuclear arsenal with which he would overthrow the Kryptonian government, and place the entire planet under his dominion. His missile collided with a spaceship piloted by Jor-El, altering its trajectory. Instead of striking the meteor, it instead struck the Kryptonian moon of Wegthor, destroying the moon and its lunar colony. Although the incident was an accident, Jax-Ur was placed on trial for the deaths of over five-hundred colonists. He became the first criminal in Kryptonian history to be imprisoned inside the dimension known as the Phantom Zone.
Time passed and more and more criminals were exiled into the zone, at which point, Jax-Ur met the military leader known as General Zod. Aligning himself with Zod, he committed his amoral, scientific genius towards avenging himself against Jor-El. In an ironic twist, fate would deny him vengeance. As Jor-El lamented, "while Jax-Ur was sentenced to life, Krypton had been sentenced to death!". Jax-Ur and Va-Kox did spent a few fleeting moments free shortly before the cataclysm, but the chain reaction in Krypton's core blew them back into the Phantom Zone.
Years passed, until Jax-Ur learned that the son of Jor-El, Kal-El, had survived Krypton's destruction and was now living on Earth. Jax-Ur escaped the Zone and discovered that under a yellow sun, he developed the same powers as Kal-El and set out to have his revenge on the son of Jor-El.
Jax-Ur at DC Database
Jax-Ur at Comic Vine