I'm sorry but I d'ont see what we can play in terms or role in your RPG. What is a Monster Mage ?
A Monster Mage is actually a human who has learned magic from a great Monster Mentor. I can post the intro story to the setting, if that'd help! The players don't choose classes but can pick powers, trait bonuses, and/or companions from the seven main Monster Mentors. There's also an additional Monster Mentor and powers unlocked at the end of the scenario.