DxD Power levels (more or less)
[[Stats]]
100+ —> Low Class
500 + —> Mid Class
2,000+ —> High Class
10,000+ —> Ultimate Class
30,000+ —> Satan Class
50,000+ —> Super Class
100,000+ —> Trihexa ( 1/7 divided )
500,000+ —> Ouroboros Dragon
600,000+ —> Great Red
900,000+ —> Trihexa (full )
1,000,000+ —> ExE Gods
Also, not lo the stats of a Low Class will be above 100. As long as 1 or 2 stats are above the threshold, they can be called that Class.
That is to say, Trihexa (full) might have 999,999 Strength and only 9 Intelligence and Wisdom.
Also, MP == 10*(Intelligence) and HP == 10*(Vitality) and MP Recovery == 1*(Wisdom) (without the perks) is only for the Gamer. For non-Gamers, the amount of HP, MP, recovery, etc… will vary from person to person, race to race, talent to talent, etc… .
If Echo has all stats at Ultimate Class level, and fights an Ultimate Class, without skills, he'd still be able to win after a slightly difficult fight. Using his skills, he'd be able to wipe the floor as long as the difference in stats isn't too much.