Blaze debuted in Action Comics #655 (July 1990), created by Roger Stern and Brett Breeding and first pencilled by Bob McLeod.

[1] Later, Satanus was created by Brett Breeding and debuted in The Adventures of Superman #493 (August 1992) by Jerry Ordway and Tom Grummett.

The twin duo originally starred as Superman villains associated with the supernatural but were later revealed to be the children of the Wizard Shazam, Blaze respectively depicted as a powerful enemy of the Marvel Family.

Blaze and Satanus are demonic hybrid children of the wizard Shazam and an unnamed Hellhound demoness who assumed human form to seduce him.

Satanus has an Earthly identity and disguises himself as Collin Thornton, the publisher of Newstime magazine, who had previously hired Clark Kent as editor.

During the Underworld Unleashed event, Blaze and Satanus gain increased power from the demon Neron in exchange for their souls.

[15] In personal combat, she is strong enough to engage in battle with Captain Marvel, with her strength being compared to that of the demigod Hercules.

[10] Satanus is, similarly, recognized as a demon lord with significant mystical power, placing him among the highest ranks of infernal authority in Hell.

He possesses supernatural physical prowess derived from his demonic nature and has abilities such as dimensional travel, reality alteration, and flight.

[9] Alternate universe variants of Blaze and Satanus created by Lex Luthor appear in Superman: Red Son.