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.
The silmarils on the other hand are NOTHING compared to the infinity stones and much less to the worldstone.. if it were like that, Melkor would easily defeat Ungoliant and much more (it would destroy all arda and be invincible, but that's not what we see in JRR's books Tolkien), what we saw was On the contrary, even after catching the SIlmaris Melkor didn't have the strength to hit a spider, he literally cried and still ran away (because if he didn't run away he would die, proof of that is that the balrogs had to cover him up.. .).
So Inarius SLAMS!