Storm Dragons are the masters of the skies. They are excellent fliers and land only to rest and eat. In addition, they have full control of the weather. They are very hot-tempered and easily angered. They will attack any human that bothers them, conjuring strong winds and dangerous lightning.

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.

Larger than most dragons his age, Saevio can be intimidating at times, especially when he's in a bad mood. Because of his inexperience with magic, his mood reflects the weather; storms equal anger, hurricanes equal his fury, etc. Saevio can be easily angered, as his name suggests in Latin, and will not hesitate to jump into combat. His anger aside, he can be a very caring, sometimes overprotective dragon; he will selflessly defend any of his friends, not caring if he would put his life on the line. He's usually seen beside his mate, Onyxscale.