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.

Rupoe is a solitary being, wishing to keep to himself, and hates the company of others. When another dragon (usually Sawren) tries to talk to him, he merely nods and walks away. This infuriates them (again, mostly Sawren) and it has lead to her rejecting him as a mate, choosing the electric dragon Terwen instead. This change of events has lead Rupoe and Terwen to become "rivals".