Maybe as a feature, an extra jewel type on wands: (Specifically towards staff wands) there could be exotic jewels corresponding to this jewel type that would change the animation or "style" of casting. Even as a crowns feature I feel it would make the game a bit more customizable for wizard characters. If you'd have a more mysterious character with a staff, some people wouldn't want their arms swinging wildly, but more minuscule movements, or greater movements; diverse animations like many enemies you can fight in the game.
In short, jewel slot to change animations to make characters more customizable to fit a theme
