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. A creature based on the "Molten Man" appeared in the Marvel Cinematic Universe film ''Spider-Man: Far From Home'' (2019), which was actually an illusion created by a series of drones operated by Mysterio. Provided by Wikipedia