Draylo said:
Time Mage
I had an idea for Time Mage once that ended up being a feature they used with SCH. The helix's heavy damage over time, Embrava, and then lots of jobs got Haste II. My idea had the helix spells not named helix spells and were actually named after Zodiac signs with matching elements. Another nuking mage wouldn't hurt or change up any strategy, however, and would just be niche. Slap on Comet, Meteor, and Impact w/o locking Impact to a piece of equipment.
Aeonova said:
Necromancer
If you havn't done the Necromancer questline in FFXI yet, you really should.
https://ffxiclopedia.fandom.com/wiki/It%27s_Raining_Mannequins
https://ffxiclopedia.fandom.com/wiki/Behind_the_Smile
https://ffxiclopedia.fandom.com/wiki/Knocking_on_Forbidden_Doors