After playing Requiem as a Mage and playing the Witcher TRPG I had the idea for a mod and I'm hoping someone would be willing to make it since I can't figure out modding with the CK.
1. A Magicka Recovery spell - Restoration, Novice level, Concentration, with magnitude, either hand... maybe 10 Magicka per second? It gives Mages something to do when their magic runs out and changes the gameplay.
2. Gameplay mod - get rid of passive Magicka recovery completely and add the spell, make it a spell you start with. Now the only way to recover magic is to rest, wait, drink a potion, or concentrate on the spell. This would create a fun playstyle for mages where you throw out spells and then have to take a few breaths to recover rather than run away and wait for ages.