Wonder Man is an extremely powerful mutated human. He received his powers as a test subject for Barons Zemo’s Ionic Ray. He is the brother of the criminal called the Grime Reapers and has been associated with the Avengers, Mighty Avenger, Avenger Unity, and Shield. He was worked as a stunt man, actor and private security force.

The tissue and bones of his entire body have been augmented in strength and to a certain extent supplanted by an unknown substance during the “ionic ray” bombardment.

Wonder Man  possesses vast superhuman strength, the limits of which aren’t known, and he is listed at the class 100 strength.

He can run and move and react at speeds that are beyond the physical limits of the finest human athlete.

Wonder Man’s ionic body grants him unlimited stamina and is therefore immune to fatigue.

His bodily tissues are much harder due to being ionized organic matter instead of normal flesh and far more resistant to physical injury than the bodily tissues of a normal human. Williams is highly resistant to penetration wounds, even from high-caliber machine gun shells. He can also withstand tremendous impact forces such as falling from great heights, being repeatedly struck by superhumanly strong opponents or breaching planetary orbit and making re-entry without being hurt. Also showcasing high resistance to extreme changes in temperatures.

Williams is functionally immortal. Because of the ionic energy that empowers him, he no longer ages and is immune to disease and infection. This same energy sustains Williams’ physical vitality far more efficiently than the biochemical process that sustain ordinary human life.
As a result of his transformation he no longer requires food, sleep, water or oxygen to survive. Simon is now a fully energized entity who can sustain himself indefinitely without nourishment, easily able to live outside habitable planet orbit.