Horse Dragons have equine-shaped bodies and hooves instead of claws, which allow them to be fast runners. They specialize in running takeoffs, which are quicker than taking off from a stand-still. Horse dragons are able to stalk their prey from the ground then quickly execute an aerial attack for the kill.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Yayger is stubborn, suspicious, and doesn't easily trust anyone other than his parents. While he is a bit of a tough nut to crack, he's really a sweetheart to anyone who can get through to him. The ones he is close to think of him as supremely loyal and dependable. He has perfect pitch, but is much better at naming notes than hitting them.