Stone Dragons have a tough outer covering made of a stone-like material. They eat rocks, using the minerals they contain for nourishment and to keep up their stone outer shell. They rarely move, and are the heaviest of all types of dragons. Although they have wings, indicating flight ability, no one has ever seen a stone dragon flying.

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.

Firashika likes being a Stone. She doesn't care about any other breed, just her own. Occasionally she begins to brag, causing the other breeds to groan. The fact that Firashika's very close resemblance to rock gives her a huge advantage in fights, crushing her enemies to death with her tail, which she will drop on them. But her bright red eyes can be a problem. If Firashika doesn't keep her eyes shut, her opponents will notice the shiny red thingy on her and eventually realize that they were looking at the eye of a Stone Dragon. As a joke, some dragons in her clan like to throw rocks at Firashika and see if she will notice. Like others of her species in the clan, Firashika is a rather hushed dragon and speaks rarely, but when she does it's most likely about the superiority of Stone Dragons.