Really liked this one. Naming magic has always been powerful, but to turn that on its head - 'who are you' - question magic is pregnant with possibility. Although even when it wasn't magic, just a philosophical question that changed a dragon's life, that was pretty cool. St Buddha and the Dragon, or something
I did find Lessa a little annoying, for some reason. The obviously perceptive kid just threw the cosy balance without taking it anywhere. And then she rides in as the cavalry - is she also a dragon? - is the horse a dragon? - is she a dragonrider like her namesake? - and it's a cool scene but kind of dropped as window-dressing for the transformations of the core protagonists.
Another thing that worries me from time to time, especially in fantasy, is when a person is persistently described as 'dark'. What is the author getting at? Is it a physical/ethnic description? Is it some kind of ringwraith where only the clothes are seen? Is it indicating mood or the darkness of the soul? Here I get that it's the traditional 'dark knight' thing, and the story's all about traditional labels, but I wonder how helpful it is to use 'dark _person_' as a negative epithet over any other.