Thunder Dragons are the masters of electricity. Their wings gather energy as they soar through the clouds, and when they clap their wings together they can create devastating arcs of lightning. They can stay airborne nearly indefinitely, landing only to sleep and breed; they catch their prey from the air and take moisture from the clouds. A thunder dragon’s roar is considered to be an omen of misfortune.

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.

A very considerate and still powerful dragon, Tannus is often reffered to as "The God Tannus." There is really no way to prove his god hood or not, but the power is surely there. Tannus is very caring towards the clan and will do all and anything in his abilities to assure the survival of all. Tannus is a bit of a push over at times, though, if you can convince him that what ever you are asking is for the good of the clan. He uses his electric abilities as one of the key leaders for the cave's defense, though his only true weakness is his mate Astarte. He holds her above all else and if she asks, he complies.