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.
Had enough power to generate his own city--if not multiple cities--with superpowered combatants. He was defeated--when the heroes rebelled against him. So, he's powerful enough to generate a city wide real people environment(the JL could not tell the difference). And, he was perfectly fine as long as his creations were happy(so much so that he also hid his appearance as well), but--when they rebelled--he was taxed more and more until he was revealed and defeated. He is a A+ level reality illusionist, but a D+ level creator. No slouch, but beatable.