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.
SPEED: HELA
DURABILITY: HELA >=
INT: HELA
EXP:HELA
POWER:DOOMDAY
ABILITIES:HELA
HAX:DOOMDAYS
WEAPONRY:HELA
COMBAT:HELA
SKILLS:HELA
SCALING: =
FEATS:HELA
DC:DOOMDAYS
AP: HELA
STRIKING: DOOMDAYS
OVERALL: 10-5
WINNER:HELA MID/HIGH DIFF
So Doomsday's AP would also harm her (at least)
From Superman's perspective, without Kryptonite Doomsday was immortal so Hela's attacks would either feed for Doomsday or just desperate attempt to harm an immortal alien.