I believe spells should be redone again for just black mage. Black mage should have access to all elemental magic spells. Let conjurer keep access to Aero and Aerora and Stone/stonera. Hell, give them Banish and Scourge so they can have more spells as well to be comboed.
Let Black Mage have Stone/Stonra/ and Stonega Aero/Aerora/ Aeroga. Give them the water line as well. And for the love of god fix the ice line before garuda shows up lol. The only spells you can use on her with ice is Blizzard and Freeze.
Thuamuturge shouldn't be able to equip all elemtental spells to be fair, only black mage since you are giving up so much survivability options to do damage.
This Harry Potter spells crap need to end, (7 years at Hogwarts and he's still using the same 3 spells, stupify, expecto patronum, and expeleriomus). The spells should never have been split between the healer-role and the damage caster-role. Let have access to the low tiers and one to the highest tiers.