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.
Dark Kahn, on the other hand, is a cosmic creature created by fusing Mortal Kombat villain Shao Kahn with the DC universe character Darkseid. While he possesses abilities similar to those of Shao Kahn and Darkseid, including superhuman strength and the ability to manipulate reality, he lacks the same stamina and immortality that Superman possesses.
Additionally, Superman has a wealth of combat experience and has fought some of the greatest villains in the DC universe, while Dark Kahn is relatively new and less experienced.
As such, Superman is likely to win this fight, with around a 70% chance of winning, while Dark Kahn has around a 30% chance of winning.