I hate to be a shit stirrer, but isn't Rasa a bit really powerful compared to everyone else? Not only does she come with built in armor and a slew of immunities and lack of needs but she can also self-repair, is powerful physically and comes with the ability to shape raw magical energy to suit her needs both offensively and defensively, even if it's not out and out magecraft it's still a powerful bonus on top of what would already be a very strong character without it. You could probably build a whole character around an ability like that with little else and it'd still be very powerful.