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.

Hydro is Tru's gray dragon or weather dragon, Tru will often fly up to the sky on the back of UltraV's and visit Hydro and see what he has planned for the weeks weather in the area. Hydro never fails to give his plans to her, however any being other than Tru will be attacked by strong winds or dangerous lightening. Tru strongly disagrees with this but understands the way that Hyrdo is.