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.

Purple PEMDAS is Walker of Calm Sea's mate. He is well balanced but is sometimes territorial. He and his mate are perfect for each other even with their differences. PEMDAS is large for his species. He is an excellent hunter and flyer. He is also one of the hunters of the Aquasun tribe. PEMDAS provides food for Walker of Calm Seas. Since he can not swim, Walker of Calm Seas greets him on the shore of the lake she lives on. There is nothing he loves more then shooting trough the clouds and chasing after birds. Although he loves his children, he secretly wishes that one of his kids looked like him. One egg they had together was of his species but was lost.