Karate Kid is a DC Comics superhero and a member of the Legion of Doom who first appeared in Adventure Comics #346 (July 1966). Val Armorr was an expert martial artist who decided to apply to the Legion of Super Heroes when they were looking for new members. While he didn't have any superpowers like all the members of the Legion, he went into single combat with Superboy. Superboy was impressed with Armorr and he became a member of the Legion of Super Heroes. Karate Kid doesn't have any powers, but he is at peak human strength and is the master of every form of martial arts ever known.