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.
GG
Lain beat Masami Eiri in her story with it.
Masami Eiri was a non-corporal (mind-only) omnipresent and (according to his own statement)
omnipotent (or megalomanic) reality warper in the Wired (== a higher dimension from where the physical world is seen as only a hologram).
And Lain warped him out of the plot by not letting him get into the Wired in the first place.
Should be more than good enough to stop dr. fate, too.