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.

Siel could also be considered a Guardian of the Cave, considering her special powers. However, she is only called on when there is no other option, somewhat similar to Esmeraude. In the case of humans attacking their home, Siel's job is to hide their home as best as she can and then do whatever she likes to the attackers. Since this has yet to happen, Siel usually has to listen to the younger dragon's complaints that it's too hot and asking her to create a nice breeze for them, or to make it rain. Needless to say these requests get tiresome quickly and if she's in a bad mood, will usually do the opposite of what was requested, while she has her own personal comfort cloud.