Marvel Comics Sentry is one of the most powerful beings to ever walk amongst Earths Mightiest Heroes. Having gone toe to toe with the likes of Thor, The Hulk, and Namor, there arent many that can compare to the Golden Guardian of Goods raw power.

But even for a superhero regularly seen as 'Marvel's own Superman-level superhuman,' all that power doesnt make Bob Reynolds entirely unstoppable. And for all his great strength, these are the Sentry's biggest weaknesses pulled straight from Marvel Comics.

Negative Zone Energy

For all his vaunted power, the Sentry is as vulnerable to the Negative Zone as any other Marvel Hero, if not more so. As established in Sentry #3 by Paul Jenkins, John Romita Jr., and Mark Morales, prolonged exposure to the Zone incapacitates Bob with the N-Space effect a crippling onslaught that renders the Sentry both physically powerless as well as emotionally overwhelmed.

Venturing...