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.

Rejvik Thunderstomp is an unkempt dragon, with matted fur and tangles in his mane. Despite his appearance, he's an excellent hunter.  He was named for the distinctive, thunder-like sound he makes when pouncing on his prey.  Rejvik tends to stay away from other dragons, who in turn leave him to his solitude.