Based on the comic book lore, the author selects five characters who have joined the Avengers and are considered capable of defeating the rest of the team single-handedly. Cosmic Captain, Hyperion, Sentry, Carol Danvers, and Black Panther make the list, though this is not an official ranking released by Marvel.
Cosmic Captain once inhabited the comatose Tamara in Jonathan Hickman's Avengers storyline, described as the embodiment of life in the Marvel Universe with powers nearly unrestricted by conventional limits. Hyperion from Earth-13034 joined the team during the "Incursion" era; the author ranks his pure strength below Cosmic Captain's. He has also fought alongside Thor against the Beyonder.
Sentry possesses reality-altering abilities, and his evil persona, "The Void," makes him a threat that requires the entire superhero community to confront. Carol Danvers has super strength, flight, energy absorption, and projection capabilities, and was trained by Mar-Vell and Captain America. The author believes her leadership experience also gives her insight into her teammates' weaknesses.
Black Panther's inclusion relies not on raw power, but on contingency plans, strategy, and long-term preparations made to protect Wakanda. The article concludes that these five individuals have the potential to "solo" the Avengers due to their abilities, experience, or targeted preparations, although the specific outcomes remain part of the author's subjective comic book discussion.