Waterhorse Dragons received their name due to their horse-like physique and endearing behavior. They are capable of surviving out of water, and when on land their skin secretes a gelatinous goo to retain moisture. However, their large paddle feet are better suited for swimming, and waterhorse dragons tend to move very awkwardly when on land. Waterhorses are very friendly dragons and enjoy playing with humans.

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.

Despite his noble appearance, Tasunke is very fun-loving and will easily drop his serious front if asked to play. He loves human children and will often give them rides over the water, much to the dismay of their parents. His only flaw is that he can get a little carried away with his fun and has trouble returning to his stern demeanor. The only one with whom he can split these two elements evenly with is the graceful Lily, with whom he spends most of his time when relaxed. Recently he and Lily had their first child, who unfortunately had to be given up, though he tries to put a light face on it since it was taken in by another. Despite his best attempts to try for another child, Lily seems reluctant for fear of the pain of another loss.