"She is!" he agrees. "Each of the three kinds works differently. A High Mage casts spells using energy drawn from themselves or the people around them, and their spells are very reliable and predictable: the same spell done the same way will have exactly the same effect every time. It's hard for them to improvise, though, for just that reason; a High Mage might take several years to invent a new spell, because they have to build it out of existing pieces using formulas and experiments. Wildmages, on the other hand - I'm a Wildmage - our magic is less like doing a spell and more like asking a friend for a favour. An incomprehensibly vast and powerful friend."