A long time ago. Final fantasy III came out with a new approach to learing magic. The characters would be equipped with espers(magical beings) and as they fought more battles, they would learn spells from the espers. What if a similar approach to learning magic was applied to a P&P rpg?
at a place were magic gathers, for what ever reason, the trees of this place produce fruit that is filled with magic energies . these fruits when eaten cause different effects. much like the potion a wizard makes.