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.
For those of you who don't know the cosmology:
Infinite universes:
https://www.youtube.com/watch?v=t24kvjPF1Qw&t=251s
Memory Space is beyond Space and Time, and is also 5-D.
To see it, explained better, here is a blog scaling it to 1-C (Complex Multi) or 6D
https://vsbattles.fandom.com/wiki/User_blog:CloverDragon03/A_Comprehensive_Look_at_the_Cosmology_of_Xenoblade_Chronicles
However, I don't know if A can even hurt a nonexistent being like Sazed, which complicates things. Sazed can't hurt A either, because he can exactly punch A or something, nor Reality Warp/Existence Erase A, since A is resistant to both of them.