The Superhero Database Classification number, or SHDB Class, is a number that represents the overall 'power' of a character. All traits of a character are used for calculating the Classification.
What it DOESN'T mean
This doesn't mean that a higher class would always beat a lower class character. But the bigger the difference in Class is, the more obvious it is who'll win in a fight.
How is this calculated
( INT^1.3 + (STR*0.5 )^2 + (SPE*0.5)^2 + DUR^1.6 + (POW + (SPS*SPL))^2 + COM^1.8 ) ^ TIER
Super Power Score and Level
Every Super Power has a score (SPS) that is used to calculate the Class. Each Super Power also has 3 levels (SPL). The level is set when connecting that Super Power to a character. The level determines the final score, of the Super Power, being used in the calculation.
HWR already soloed a version of your favorite multiverse and a version of anybody in any multiverse in all of fiction -- by definition of his actions, and the onscreen physics of the MCU.
Literally means HWR has beaten someone who looks, behaves, and has the exact same powers as any and all versions of ...
The Doctor from Doctor Who. Rick from Rick and Morty. Infinite Ultron from What If? TOAA from Marvel comics. The Presence from DC comics. Take your pick. Any kind of fictional entity you can imagine.
HWR already beat them all, individually and in unison, by simple proof of his existence until he gave up to the Loki variants.
Here's proof:
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HWR created and controlled the TVA to maintain the Sacred Timeline by pruning all other branches, until he willingly gave up. A timeline is a universe. A branch is a small moment and place in spacetime that if left unchecked becomes an alternate timeline aka universe. In order for HWR to exist at the instant he gave up, the TVA needed to prune any branch that would lead to his premature death.
Due to the nature of the MCU multiverse, that requires pruning a branch in every place across the universe at every moment in time. In other words, constantly pruning infinite branches. As shown in Loki Season 1, the TVA fires Reset Charges that move the branch (small moment and place in spacetime) to the Void at the end of time where Alioth consumes it.
Loki Season 1 also shows that HWR knew everything that had happened to everyone in the Sacred Timeline, that HWR allowed the variants Loki and Sylvie to branch off and find him, and that the Sacred Timeline branches off infinitely into the multiverse shortly after HWR dies. This means that everything that occurred in the Sacred Timeline occurred with HWR being fully prepared for it and having survived it already until he gave up. That is the point of the TVA pruning branches.
In Thor Dark World, astrophysicist Erik Selvig's blackboard about the Convergence explained how multiverse physics works in the MCU, which aligns with both the alternate timelines AND completely separate universes established in all other MCU movies and TV series. The circled areas above show the real-world physics on Selvig's blackboard. Here's what they mean:
NEXUS OF ALL REALITY:
"The many-worlds theory proposes instead that every time one state, or outcome, is observed, there is another "world" in which a different quantum outcome becomes reality."
https://www.space.com/32728-parallel-universes.html
SCHRODINGER'S CAT:
"This is where we get back to a version of Schrödinger’s idea. In the Everett version of the cat puzzle, there is a single cat up to the point where the device is triggered. Then the entire Universe splits in two. Similarly, as DeWitt pointed out, an electron in a distant galaxy confronted with a choice of two (or more) quantum paths causes the entire Universe, including ourselves, to split. In the Deutsch–Schrödinger version, there is an infinite variety of universes (a Multiverse) corresponding to all possible solutions to the quantum wave function."
https://thereader.mitpress.mit.edu/the-many-worlds-theory/
FRACTAL GATEWAYS CONNECTING BRANES:
"The new paradigm that cosmologists have arrived at by several routes is an infinite fractal hierarchy that has “universes” within “universes” without end."
https://rloldershaw.people.amherst.edu/ifu.htm
"Now imagine that multiple universes exist as membranes, or branes, through a multidimensional hyperspace."
https://www.nature.com/articles/35082684
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By definition of the above real-world physics, which Selvig shows exist in the MCU, and the physics of the MCU multiverse established in its various movies and TV series, at every single moment in time at every single place in space, an infinite number of branched timelines exist where an infinite number of ultimate-tier top-level powered threats emerge with full knowledge of HWR and with full commitment to destroy HWR and using an infinite number of ways of attack ... and HWR beat them all by simple proof of his existence until he gave up. By definition, the fictional opponents already attacked, in some branches individually and in some branches they all attacked all at once. Yet, again, HWR beat them all by simple proof of his knowing everything to occur beforehand and his existence until he gave up to the Loki variants.
Why? Because it's a possible outcome. In the Schrodinger's Cat many-worlds fractal branes multiverse, if anyone can imagine something, that possible outcome is its own branch universe.