|First appearance||World's Finest Comics #142 (1964)|
|Created by||Edmond Hamilton (writer)
Curt Swan (artist)
|Alter ego||First - Joseph Meach
Second - Xan
|Notable aliases||Xan - Amalgamax|
|Abilities||Possesses the combined powers of Superman and many members of the Legion of Super-Heroes.|
Joseph Meach was a diver who had fallen on hard times. In an attempt to draw publicity to himself, Meach set up a water tank on a sidewalk in Metropolis and dove off a building. Unbeknownst to Meach, the tank was leaking and Meach would have died if not for the intervention of Superman. Upon learning of Meach's misfortunes, Superman obtained a job for him at the Superman Museum where Meach was employed as a janitor. Meach's bitterness did not subside and being surrounded by mementos of Superman's career directed his anger towards Superman. One night as Meach was sweeping in front of a series of statuettes depicting the Legion of Super-Heroes, a bolt of lightning struck the display. The statuettes (which were actually miniature lifeless duplicates of the Legionnaires) unleashed an energy blast that struck Meach, endowing him with the combined powers of the Legion members. Determined to defeat Superman, Batman, and Robin, Meach used his shape-shifting power to turn his skin green and form a costume that was half of Superman's costume and half of Batman's costume. Calling himself the Composite Superman, Meach left a message in both heroes' bases to meet him on a mountain. There, he told the heroes that if he was not allowed to join their team, he would expose their secret identities, which he learned via telepathy. The Composite Superman then created situations for Superman or Batman to handle, but which he intentionally sabotaged to humiliate the heroes, then sorted them out himself. Superman and Batman's attempt to expose him by using robot duplicates failed due to Composite Superman's ability to read their minds. Just before Meach could reveal the heroes' secret identities, the powers he gained from the statues faded away. Meach tried to write down the secret of his powers in the Superman Museum, but his memory faded before he could finish (though he managed to write down about the lightning striking the statues, but nothing more).
A few years later an alien villain named Xan came to Earth to avenge his dead father, a criminal who had been imprisoned by Superman and Batman. Xan restored Joseph Meach's powers by recreating the original accident. Meach's memories returned and he used the powers of Sun Boy and Lightning Lad to destroy the statues of Superman and Batman leading to investigation by the Duo. This time, the duo were able to deduce their enemy's identity as they checked the museum employees who were not around when the Composite Superman was sighted. The Composite Superman captured Superman and Batman by impersonating a chained Robin. The Composite Superman tried to kill the team by using his powers to simultaneously turn half of their bodies to anti-matter; Meach's powers wore off before he could accomplish this. Xan appeared and fired a lethal energy blast at the heroes with his Magna-Gun. A remorseful Meach intercepted the blast, killing him instantly. A statue was made to honor Joseph Meach saying that he "lived a villain, but died a hero."
Xan escaped from prison and traveled back in time to recreate the event that endowed Joseph Meach with his powers, but with himself obtaining the powers. Xan assumed the identity of the Composite Superman and displayed greater control over his powers and understanding over his weaknesses such as timing his needed restorations of energy to maintain his power. Xan discarded the Composite Superman identity and created an original costume with the new name Amalgamax. Superman traveled to the 30th century to ask the Legion of Super-Heroes for assistance. Superman, Batman, and the Legion defeated Amalgamax by making him believe that the disease that killed his father had developed in him and that his excessive power was causing the disease to develop rapidly.
Composite Superman's origin was reimagined as an early attempt of Professor Ivo's to duplicate the Justice League's powers by creating clones of the Justice League. It was only ever referred to as "Composite". Believing it to be a failure, Professor Ivo buried his creature in a field. The clones later revived themselves, merged into one being, and stole Superman and Batman outfits from a store sewing half of each together. Acting as both Superman/Batman and their alter egos of Clark Kent/Bruce Wayne, the Composite creature kidnapped Lois Lane and Tim Drake in an attempt to live the lives of both of its counterparts. He was later attacking Metallo when Batman and Superman arrived, but the duo could not defeat him and he escaped. They tracked him down and told him if he wanted to be both of them then go ahead. They told him of many crimes taking place and he could not decide who to help first. Composite lost it and ripped himself apart before they could help him.
Following the Zero Hour reboot of Legion history, Composite Superman was removed from continuity. Legion of Super-Heroes Vol 4, #68 introduced a new "Composite Man", a Durlan who had the ability to duplicate any Legionnaire's powers and appearance. Rather than the clean, split-down-the-middle appearance of Composite Superman, Composite Man had a shifting mixture of costume elements from all the Legion members. Both he and his sister had been given these abilities by the Durlan government to be weapons, and resented this. However, while she chose to make her own destiny, he joined the Dark Circle to gain revenge on Durla.
On the planet Durla, there was a long cultural struggle between secular and religious movements. Before the formation of the United Planets, the Secularists of Durla created a program to produce living weapons through mutation. The goal was to acquire soldiers capable of not only mimicking the appearance but also the function of any species.
When they lost their grip on power, the Secularists found their program deemed sinful by the theocratic government and the test subjects were imprisoned in crystals. During regular maintenance to keep the living weapons contained, one of the crystals is damaged and an unnamed Durlan mutant breaks free, killing the entire priest class of Durla. The living weapon goes in search of Durlan priest and Legionnaire Reep Daggle. When battling the Legion of Super-Heroes the living weapon not only imitates the Legionnaires' abilities, but also parts of their respective appearances. Composite Man meets his end when Saturn Girl uses her telepathy to shut down his mind, leaving her in a catatonic state.
In terms of abilities and raw power, the Joseph Meach version of Composite Superman was one of the most powerful enemies Superman and Batman ever faced. He had all of Superman's powers, as well as those of Supergirl and the similarly-powered Mon-El and Ultra Boy. The Composite Superman also possessed numerous special powers, derived from various Legion members:
In Impulse #56, Crayd'l, a nanotech computer belonging to Bart Allen's archenemy Inertia, accesses Young Justice's files and uses information on Robin and Superboy to become a "Composite Superboy", with the half-and-half, green-skinned appearance of the original. Crayd'l intended to access information on the other members of Young Justice, but Impulse tricked him into downloading a music CD instead, turning him into Superboy's favourite rap artist.
In Superman/Batman #6, Hiro Okamura creates a spaceship in the form of a mecha version of the Composite Superman. In a more recent arc in Superman/Batman, a new Composite Superman Batman was created when Mister Mxyzptlk merged the Supermen and Batmen of several alternate realities together. Startled to be joined together, Batman mentally exclaimed to Superman, "Clark, your mind races, I never knew"; Superman replies, "And yours Bruce, is so dark". This ends at the battle's conclusion, and all the Batmen and Supermen who did not "need to be here" were sent away, leaving only the normal DCU Superman and Batman).