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.
Fused with all of reality
defeated Glory wielding Master(Also how you stated Doctor wouldn't master the force when he mastered Glory, Lux Aeterna, Time Vortex and Key to Time)
The Doctor who merged with Type 1 TARDIS which allowed him to absorb all of creation
Turned Eternals, Gods who transcend Time Vortex and tore through it with their screams, Time Vortex itself transcends dimensionality into normal humans
And the same Doctor who defeated Gods Of Ragnarok and destroyed universal circus
Gods Of Ragnarok being the guys who created land of fiction which is place where all (allegedly)fictional characters exist in