After you get your first sage from the Book of Satori, and have other Sages from leveling up Goof-Offs, perhaps you might want a stronger sage... Look no further. Here's your solution. Merely build up any character you wish (other than your hero), and turn them into either a Wizard or a Pilgrim. After they learn all (or at least most) of their spells, turn them into the other. You now have a Sage. It's best to do Wizard last, and let them get a LOT of MP, and then turn them into a Soldier. This lets them have Strength, HP, and MP.