Deep Sea Dragons, as their name suggests, spend most of their time in the darkest depths of the sea. They have a bioluminescent dorsal spine that serves to attract prey and communicate with their own kind. As with many deep sea animals, they generally eat whatever they can manage to bait. They rarely leave the ocean floor, surfacing only during breeding season. When they do choose to travel to the shallower depths, they avoid bright lights and will only come up far away from shore.

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.

As an egg, Cruscoe was one of the few survivors of the Dragon Plague that killed all other dragon eggs in the family. He is a curious explorer and explores the sea often. Even as a hatchling, his curiosity often lead him to trouble, and Dragonwolf often had to keep a close eye on him. Now he uses his curiosity for medicinal experiments, and can cure most sicknesses. He is often found seeking knowledge from others and is a explorer of wisdom. Even though the plague is still running, Cruscoe can now be of help protecting the eggs. He now is the soulmate of Cloud hazeheart and they are often found wandering the shores together.