I was editing one of my teams just now, and figured there is no reason to choose Wizard as primary if you have a Lore/Black Magic unit (I could say the same for some other classes comparing to it actually). The Scholar is superior to the Wizard in every way possible, stat-wise. I'll copy the stats here for reference:
Class HP MP SP PA MA Move Jump C-EV Can equip
Wizard 106 87 8 3 12 3 3 5 Rod,Hat,Clth,Robe,Acc.
Scholar 106 92 8 7 12 3 3 5 Swd,Rod,Stf,Book,Pole,Hat,Clth,Robe,Acc.
Dropping MA to 11 and losing the C-EV to 0 could be a way to change this among others
Doing that would make it literally worse than Summoner is currently. (aside from HP, which isn't saying much.) Real problem with Scholar isn't even its stats compared to Wizard, its the skillset (mainly Quake and Tornado). I don't even know why Scholar is even that close to Wizard in stats in the first place; that has always bugged me for the longest time now. Wizard, IMO, needs to be buffed, stat-wise; they're supposed to be the prime offensive magic class; why Scholar is better than Wizard is right now is beyond me.
Then again, I don't like using mages period, so whatever happens to 'em, happens.
Separate: Haste, Regen instead of Add: Haste, Regen. You're still guaranteed one of the two if my knowledge is right about 'Separate'.
Too weak. People would just turn to Haste 2, as if that spell isn't ALREADY being overused enough as it is now as its much more reliable. It'll just become a staple on most teams, just like how Raise/Raise 2 is pretty much. And for Regen, yeah - there's plenty of better ways to get that, whether it be from equips or abilities.