Read more about Molten Man at: Wikipedia

Official Site: Marvel

Molten Man is a fictional character in the Marvel Universe. The character was created by Stan Lee and Steve Ditko in Amazing Spider-Man #28 (September 1965.) The character was introduced as a supervillain, but has acted as a superhero in recent years.

Mark Raxton was born in New York City. He was a scientist who could not wait to use his skills to become rich, and once worked at Oscorp Industries, Inc., as the laboratory assistant to Dr. Spencer Smythe, creator of the Spider-Slayer. Raxton and Smythe developed an experimental new liquid metallic alloy for the Spider-Slayers from a radioactive meteor, but Raxton attempted to steal it and sell it for his own profit. In the ensuing fight with Smythe in the laboratory, Raxton spilled the liquid alloy all over himself, his skin absorbing it and turning golden. Fearing for his life, Raxton ran for the nearest hospital, only to discover that the alloy had changed him for the better when he angrily punched an irate motorist's hood, buckling it. Realizing the great potential his new abilities afforded him, Raxton, now calling himself the Molten Man turned to crime to further his gains. Peter Parker, as Spider-Man, was forced to nearly miss his high school graduation to stop the Molten Man's first crime spree. He was released from jail before long, only to continue his criminal activities. However, he was once again defeated by Spider-Man.

Eventually, his body begins to give off intense heat and to consume itself. His metal skin became molten, and he stole meteor fragments from a museum to attempt a cure. An encounter with Spider-Man resulted in his submergence in the polluted East River, which temporarily reversed the deterioration.

After a few more encounters with Spider-Man, it was revealed that Peter's friend Liz Allan was Raxton's stepsister. Raxton broke into a pharmaceutical company to steal chemicals which would reverse his condition permanently. When the procedure failed, he went berserk and kidnapped Liz. Liz was saved by Spider-Man, but the Molten Man was buried beneath the laboratory. He later resurfaced at the same site and once again sought his sister out. Spider-Man prevented the Molten Man from hurting her, knocking him into a swimming pool, thus extinguishing his flames and cooling his molten properties. He was then taken to the Vault. Raxton realized that his stepsister was the only member of his family who had not abandoned him. He was eventually released from the Vault and approached Liz once again, this time to apologize. Spider-Man misunderstood his intentions and battled him once more. Reconciled with Raxton, Liz and her husband Harry Osborn gave Raxton a job as head of security at Osborn Industries. Molten Man later teamed up with Spider-Man and the second Green Goblin against Tombstone and Hammerhead. Molten Man was then kidnapped along with Liz, Normie Osborn, and Spider-Man by Harry Osborn, who had suffered a mental lapse, making him the evil Green Goblin once again. Molten Man was saved by Spider-Man. Molten Man and Spider-Man have since become friends, and Molten Man has occasionally used his powers to come to Spider-Man's aid against other supervillains. A few times he has been a bodyguard for Peter Parker's friends and family when disasters overwhelm the city.

Molten Man has not been a contender in any CBUB matches.