Did the Devs intend mages to be able to regenerate MP while casting?
If yes:
- Allow MP regeneration while in active mode.
If no:
(choose one or more of the following)- Disable offensive and healing magic bonuses from stats and abilities while passive.
- Increase casting and recast times of all spells by ~30% while passive.
- Greatly increase enmity generated from casting spells while passive.
My guess is they didn't intend for mages to cast while passive. If they did, they wouldn't have made potions, songs, abilities etc.. that help restore MP.
Instead, they would likely have made spells generate more hate in order to dissuade mages from running too hot.