Molten Man

Molten Man (Mark Raxton) is a fictional character appearing in American comic books published by Marvel Comics. Once a chemical engineer who longed to get rich, Mark Raxton was caught in an accident that saw his body get covered by an experimental organic-liquid metal alloy, which granted him superpowers, including the ability to generate extreme heat and radiation. Turning to a life of crime, he started off as an enemy of the superhero Spider-Man, but eventually was redeemed. He is also the stepbrother of Liz Allan.

The character has made appearances in several forms of media, including animated series and video games. Additionally, an illusionary creature based on Molten Man appears in the Marvel Cinematic Universe film ''Spider-Man: Far From Home''. Provided by Wikipedia