This is one of Arnice's default servans and also a very reliable healer. You'll most likely keep her until you're able to get a more potent healer. Alraunes seem to be gentle and childish but that doesn't mean that they can't hold off on their own in the battlefield. They'll engage in long-range combat using their only offensive skill (Energy Ball) but they'll focus on healing while fighting or when the party is just roaming around.
Burst Skill