The host, regardless of their sex, is able to transform into a tall blonde man with god-like powers, including flight and incredible strength.
During World War II, Mighty Man first fights alongside SuperPatriot, who remains his lifelong friend and ally.
Over his years of heroism, Berman's Mighty Man builds up a rogues gallery like most others in his profession, most notably The Wicked Worm and Dr. Nirvana.
Berman is killed in 1992 by a gang of ordinary thugs after a newspaper journalist learns and publishes his secret identity.
While delirious and dying, Berman mistakes his nurse Ann Samantha Stevens for his grandson Billy and passes on the Mighty Man entity to her.
Ann Samantha Stevens is unaware that Berman gave her the Mighty Man entity until she slips on a spillage in her home and accidentally taps her wrists together.
When she has the powers and is unaware of it, she supervises the health of an amnesic 'superfreak' who was found in a burning field, and gives him the nickname 'the Dragon' because of his green skin and the prominent fin on his head.
He/she helps save two other heroes, Dart (Jill August) and Star from an escaped group of super-powered prisoners.
Superpatriot is being controlled by Horde, a being made up of hundreds of copies of the entity known as Wicked Worm, combined with the wizard Fon~Ti.
Mighty Man joins the super-powered team of bounty hunters called Freak Force, but does not reveal her identity to them, or the Dragon, for some time.
Her nursing knowledge allows her to break his bones in ways so that the Dragon's super-fast healing abilities re-mold them correctly.
Ann Stevens denies the Dragon's offer to join his new government team, Special Operations Strikeforce.
[3] Mighty Man also appears in various issues of Invincible in a minor capacity, such as being a guest at the funeral of the Guardians of the Globe and participating in large battles.
Erik Larsen was a big fan of the character as a child (and remains one today) and Savage Dragon and popular series villain Powerhouse also started out based on the hero.