Swallowtail Dragons are graceful and quick flyers, much like their namesake bird. They are capable of precise aerial acrobatics, and can reach very high altitudes. Because of this, humans observing these dragons are often astonished at how large they are when confronted up close. A Swallowtail’s diet consists of insects and small mammals plentiful in temperate forests. These dragons are also made remarkable by their paper-thin wing membranes, which allow light to pass through, creating an astonishing effect on starry nights.

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.

Empyreas is an excellent aviator and likes to show off her skills. Sierra often has to deal with Empyreas somehow managing to set things aflame in the heat of the moment while she's flying. Despite being such a good flier, Empyreas doesn't take well to having a saddle on her back and thus, Sierra has developed the ability to ride dragons bareback. This sprightly Swallowtail Dragon enjoys racing Winterisse whenever he's available for flying up to the highest peaks around Clan territory.