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.
>Matching all the Nazgul in Single combat Alone
>Resisting Sauron Mental Attacks. ETC.
Gandalf Destroys him no effort
It's true that Gandalf killed balrog also in the movie, but who was balrog? I know that Balrog from the book solos the HP verse but in live action he was just as impressive as the fire demon created by school students in Harry Potter deathly hallows part 2