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.

Euvenva Navaten is from a distantly royal and very loyal lineage of waterhorse dragons. She has a soft and patient demeanor and has an aura of calm and serenity and is always willing to listen to the problems or worries of her fellow dragon friends. Her soothing personality makes her the greatest dragon in the cave to come speak with. Her quiet and far-seeing personality allows her to understand the characteristics and weakness of her friends, and she never stops to encourage her dear ones to be the best they can be. As quiet as she is, she observes from afar and holds motherly love over all her friends. Sometimes she is seen playing or helping the other dragon's raise new eggs with Eurice; other times she visits the outside world to play with children and other creatures to whisper soft songs of the sea and comfort. A thoughtful dragon, she has a kind heart and always comforts Siola when she is down. In free time Frittanasta, Eurice or other dragons are seen chilling with her.