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.
Versus
The Demigodes Wonder Woman doughter of Zeus the sky father and ruler of Olympos.
This will be a long hard battle Mageto defending himself with a powerful force field and Puma using his incredible agility and reflexes dodging not of attacks.
Erics magnetic powers will make it very difficult for Diana to attack him.
In the end Wonder Woman is more powerful than Magneto and Puma and will be victorious.