There are two breeds of dragons in Ilerinia, Firebreathers and Iceblowers. The two races typically breed together, and their offspring are either Firebreathers or Iceblowers. However, when the balance between good and evil shift, the dragons are called to fight on the side of good to return balance to the forces if the balance of evil overrides good. When this happens, a hatchling is born with the abilities of both breeds. This special hatchling along with a chosen human (my main character) have the duty of fighting on the side of good.

Another help would be if someone could help me think of a name for this said relationship.
When I started writing this story, what is now a main subplot was my main plot, and since adding this idea, my story has started to take on more the form I want it to. One of my editors says that the idea is too cliche, and my main character being female is just a very obvious way of differing the stories.

My main character is a princess whose life has been at stake since she were born. She is the only ligitimate child of the king and queen, and the king has an illegitimate older son whose mother wants the throne for her own son, so she has been trying to kill my main character since she was born. But she is not my main antagonist. My main antagonist is a king of another nation who is corrupted by evil, who is trying to stop a prophecy involving my main character from coming true. My main character is destined along with her dragon to restore the balance of good and evil, and some other ideas that are still in the works.
Actually, in response to number five, the son does join the evil king and takes a band of followers, a very large band of followers, with him.
- confusilated