I currently have a grade 3 Flanitor (level 5) but can't make any progress due to having zero materials to level him up with. Would I have to farm grade 3 materials? I currently have a ton of grade 2 power/mana silvers.
I really don't know. I found his health lacking, so I just bought a bunch of Grade 3 Vitality parts from Chocolina when they became available. She sells Vitality, Power, and Mana parts at some point in the game.
Any opinions regarding potent vs. mana for levels 21 - 30 (where the stat gains increase significantly)? Likewise, any recommendations as to what bonus to choose (Med Bonus or ATB+1)?
I was thinking of going mana for those 10 levels (resulting in 900 magic, 1215 magic with Magic+35%, and even more with Role Resonance as I generally use medics in teams of three), and ATB+1 so that Flanitor can cast Cura twice in one turn (not to mention his healing should already be quite powerful).