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.

Fabled as the Apostle of Thunder, one of the near-mythical protectors of old and a member of the rare legendary species of Thunder dragons, Esperon is a proud and virtuous dragon and always an amazing sight to see on the rare occasions she is called down from her near-infinite flight in the sky, bringing the roar of thunder wherever she goes. She is part of a trio of legendary power, told to have alarming power in times of need and a special ability that can only be used when all three of the 'Apostles' use their powers together.

Esperon is perhaps the most approachable of the Apostles, though is still very intimidating to others simply because of the sheer raw power she gives off just in her existence.