Here's a very rough outline for anyone wanting to offer sugestions:
-Base class has both maneuvers and custom spellcasting system, as in can reach 9th level spells, but can only prepare an handful per day.
-Broomstick as weapon/transport, Hakkero to power up magic, also unstable potions, can quickly collect Magic Mushrooms.
-Base class also has ability to learn/research new spells after battle, altough again can only pick up a few at a time. Altough Marisa is infamous for stealing acquiring spells from others, she never does so during battle, and is actually enphasized she takes her time researching and experimenting before actually bringing it up into battle.
-School has maneuvers that all combine with damage-dealing spells to buff them up.
-Stances allow you to pick a damaging spell you have prepared and spam it with some limitations.
-Base school based on Int and Use Magic Device.
Still deciding on the name since Marisa has over a dozen theme songs. Magus Night, Witch's Ball and Love-Colored Magic are my current favorite options.