All other members, not explicitly named in the original series, all follow two golden rules.
1. They have the ability to fight one level above themselves with their stats
2. They all have mastered afterglow which is an additional level higher
And for the purposes of my scale, they will also have at least one skill that boosts all abilities by one level when fighting dragon type monsters.
So let's subtract the known members from this:
Level 9s : 1 (Empress(lvl9))
Level 8s : 7 (Maxim(lvl8), 6 miscs)
Level 7s : 8 (Alfia(lvl7), Zald(lvl7), 6 miscs)
Level 6s : 12 (Misc)
To get this:
Level 8s : 6
Level 7s : 6
Level 6s : 12
From here we can now apply the basic modifiers above…
Normal combat:
Level 10s : 6
Level 9s : 6
Level 8s : 12
Dragon combat:
Level 11s : 6
Level 10s : 6
Level 9s : 12