So, I have her stats and growths, and she still fits the "Archsage" class by having all magics. But she's unpromoted, and on promo gains staves.
[spoiler=Stats] ~Character~
Portrait:
Name: Liona
Class: Archmage
Affinity: Thunder
~Stats~
Level: 19
HP: 16 + 13
Str: 1 + 16
Skl: 3 + 9
Spd: 2 + 14
Lck: 0 + 1
Def: 2 + 4
Res: 4 + 3
Con: 3 +5
Mov: 5 + 2
~Growth~
HP: 45
Str: 55
Skl: 35
Spd: 55
Lck: 25
Def: 30
Res: 45
Weapon Levels: Dark A, Anima A, Light A
Preferred Weapon: Fimbulvetr, Luna, Eclipse