Despite their great size and strength, Celestial Dragons are a peaceful breed named for their spectral, starry appearance. Little else is known about them, as they spend the vast majority of their lives partially phased out of the plane of existence through the use of powerful magic. Celestial Dragons are thought to assume their corporeal form only long enough to reproduce or to die; the rest of the time, they resemble living, breathing constellations, impervious to all physical and magical harm.

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.

In the Zhan Zhedang pantheon, Celestial Dragons are seen as lesser gods who are tasked with holding the heavenly bodies in their claws. Yen Ti, smallest and youngest of these divine creatures, is responsible for keeping the moon in its orbit, but young and reckless as he is, he can't help playing with it, leading to it slipping from his claws, falling into the void and disappearing on new moons, only to be recovered by him in the next nights.