The Son of Satan first appeared in Ghost Rider #1 (September 1973), and was then featured in the "Marvel Spotlight" series issues #12–24; before moving on to his own short-lived Son of Satan series.
Daimon Hellstrom was the son of a demon (which called itself Satan) and a mortal woman. Daimon and his sister, Satana, were trained by their father in the art of magic, tapping into the power granted them by their dark heritage. However, while Satana embraced her heritage, Daimon struggled to cling to his humanity. When their mother discovered what her husband really was, she was driven insane. Daimon and Satana were separated and placed in different homes after his mother was institutionalized and his father vanished back to Hell. Daimon grew up in an orphanage, never hearing a word from his father or sister. He became a professor of anthropology at a prestigious university. He then set himself up as an occult investigator and defender of humanity, battling dark arcane forces—primarily those of his father—under the name of the "Son of Satan".
His supernatural powers included; Dark magic,fire projection,the ability to heal others & peak human physical capabilities.