How Strong Is Demon Slayer Season 2's Tengen Uzui?
The Hashira are the most powerful warriors in the Demon Slayer Corps and each possess their own Breathing Style and abilities. Since the anime version of "Demon Slayer" is just entering the Entertainment District Arc, viewers haven't been introduced to all of the Hashira yet, but as the manga is already completed, readers have a better sense of characters and their strengths.
The recently-introduced Hashira Tengen, with his rippling muscles and large build, is not only physically strong, but he also possesses high intelligence and sound judgement. Additionally, he is an extremely skilled swordsman and has enhanced hearing, stamina, and speed (via Fandom).
Several "Demon Slayer" manga readers took to a Reddit thread titled "So, how powerful really is Tengen Uzui?" to discuss how Tengen measures up to his fellow Hashira. User u/asteroidblues65 responded, "Not far from top tier. Faces 2 moons as a lone hashira and survives." For those that do not know, "moons" refers to the Twelve Kizuki who are the most powerful demons in existence, so the fact that Tengen took two on at once definitely says something about his strength.
Another user named u/AnimeAndThings wrote, "Pretty powerful, considering that he is the fastest runner and has the second highest arm-strength among the Hashira. In addition, Tengen has Echolocation, extremely high poison resistance, and a special technique (the score) that basically guarantees victory when completed."
With all of this in mind, it's safe to say that Tengen ranks pretty high up in terms of strength.