A new MCU debate is stirring online as fans weigh the limits of Sentry’s near-limitless strength. With his darker alter ego, the Void, adding another layer of unpredictability, questions are mounting over whether one particular Marvel hero has the power to bring him down. The discussion has sparked theories that challenge Sentry’s place as one of the universe’s most unstoppable forces.
Fans pick a winner in Legion vs. Sentry fight
A recent discussion on Reddit’s r/MCUTheories asked who would win in a fight between David Haller, better known as Legion, and Sentry. Fans in the thread overwhelmingly leaned toward Legion. One comment read, “Legion eventually,” receiving over 200 upvotes. Another response stated simply, “Legion,” while another added, “Legion easily.”
Several comments highlighted the scope of Legion’s powers. One explained, “Sentry is basically Superman. Legion is Reality-Warper.” Another noted, “David only needs to think Bob into oblivion and he has won.” Others pointed to his comic book history, with one remarking, “….. legion did create the whole Age of Apocalypse timeline.”
Some fans debated Legion’s abilities across different mediums. One observed, “In the comics Legion has ‘Power manifestation’ capabilities, not ‘Reality warping’ (that would be Proteus, Jamie Braddock or even Franklin). Guess the TV version is different then.” In response, another clarified, “Reality warping is one of Legion’s core powers. He has done it many, many times.”
Beyond the forum, Marvel fans actively compare the characters’ backstories. Legion, the son of Charles Xavier, stands as an Omega-level mutant with thousands of personas, each wielding unique abilities such as telepathy, telekinesis, and full-scale reality alteration. Sentry, introduced to the MCU in Thunderbolts* and portrayed by Lewis Pullman, wields “the power of a thousand exploding suns” and battles an unstable darker half known as the Void.
Both characters share mental health struggles that complicate their immense power. Legion’s dissociative identity disorder splits his abilities among numerous alters, while Sentry’s Void emerges from trauma and depression. Despite these similarities, fans in the debate consistently concluded that Legion’s reality-warping edge would allow him to defeat Sentry.
Originally reported by Anubhav Chaudhry on SuperHeroHype.
