I found this in Outskirts Battledome Wiki about Sentry if anyone is interested about it:
Destructive Capacity: At least universe level+ (creates a secondary timeline that overwrites the universe, effectively changing history with his presence alone; stated several times by
Doctor Strange that he will end the universe), potentially multiversal+ (briefly contained a
Cosmic Cube; overloaded
Absorbing Ma, who could absorb Cosmic Cubes and a portion of
Odin's power; harmed Cosmic Cube-powered Absorbing Man; defeated
Molecule Ma after a long fight; said several times to have fought
Galactus to a standstill; fought a holding back Photon
Genis-Vell briefly; matched Blue Marvel; became the conduit for Doctor Strange's newfound power after absorbing the World Tree's power which holds endless universes in it) | At least universal+ (stated several times by Doctor Strange that he will end the universe; should be no weaker than his base form), potentially multiversal+ | At least universal+ (stated several times by Doctor Strange that he will end the universe; should be no weaker than his base form), potentially multiversal+ (rivaled his base form on numerous occasions; overpowered Sorcerer Supreme
Loki, someone that could warp Asgard and its inhabitants like Hela, Odin ,
Beta Ray Bill, etc. into a bubble, and God of Magic Strange who is empowered by the World Tree) | At least universal+ (curbstomped
Thor easily), possibly multiversal+ or higher (stopped the
Celestial Exitar by pushing him away from the Earth; implied to be powered by the White Hot Room) | At least multiversal+, potentially far higher (maximum potential has been compared to House of M Wanda on numerous occasions)
Durability: At least universe level+ (can tank recreating the timeline; implied he would survive the universe's destruction; effortlessly defeats many Heralds), potentially multiversal+ (contained a Cosmic Cube; exchanged blows with Absorbing Man, Galactus, Blue Marvel, Molecule Man and a holding back Genis-Vell; endured all the energy from Doctor Strange being empowered by the World Tree) | At least universe level+, possibly multiversal+ | At least universal+, possibly multiversal+ (tanked attacks from God of Magic Strange and Sorcerer Supreme Loki) | At least universal+ (attacks from Thor did nothing to him), possibly multiversal+ or higher (implied to be empowered by the White Hot Room) | At least multiversal+, possibly far higher (maximum potential has been compared to House of M Wanda on numerous occasions)