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.

Abandoned as an egg, NavyBlue tends to have a disdain towards other dragons, but he remains loyal to his master nonetheless. Stubborn and sometimes reckless, NavyBlue likes to do his own thing often. He is always loyal to his friends though, and will protect them fiercely. NavyBlue despises the light, and prefers to keep near the bottom of the ocean, but he adores watching the stars at nighttime. NavyBlue also refuses to go near Amber's Glow, and despises her much.

NavyBlue has surprisingly found a mate in Sandstorm Brimstone, and does not mind her quiet, sincere, and shy personality.