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.
He surpasses and transcends both the Evangelist (Embodiment of the concept of Despair and of the combined unconscious of all of mankind) and Adolla (A higher ~ parallel ~ Outerversal dimension or realm, and a place which is home to ALL ideas , concepts, even mathematics itself and all world mythologies. Adolla contains unquantifiable number of doppelgangers for every being who exists in the so-called real world, who have the properties the way mankind imagines they COULD be. I'm definitely getting "The Dreaming" (Vertigo) vibes from seeing how Adolla was implemented, or of similar outer realms which contain everything which could be real but isn't ).
He can warp reality, laws of physics, define and modify universal concepts and laws . Which means he can also Create other Gods like Death who were stated to be an Absolute Being in the manga.
He can even turn abstract and intangible things and concepts like e.g. Despair into tangible~physical things like an atmosphere, he casually catches any and all energy beams - even those which were stated to be have godlike absolute obliteration , and can also transform energy attacks into flowers. Easily resurrects everyone on a planet etc
Also far more powerful than other character in his verse who by himself was already tougher than the toughest all of humankind could imagine, therefore Shinrabanshoman is of course also far more powerful than what can be imagined.
Extremely powerful. I'm still trying to compile some of the more relevant scans to back up everything I said so far.
I'd definitely Tier him at Outer at least.