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.
Pretty sure heatblast went supernova in the classic series. While scorpion lost to freaking Sonya
While scorpion lost to sonya(literally just a military girl).
Johnny cage(before he got his powers)
Heat blast was capable of being star level.
Scorpion is literally a jobber.
New timeline scorpion also doesn't have enough feats to fight that supernova alien candle(as gwen calls him that)