Each Fever Wyvern carries a unique and very deadly disease on the spines of its tail. To make up for a lack of physical strength, the dragons use this disease to their advantage by poisoning prey and fending off attackers. The illness will quickly render victims helpless before eventually killing them. A Fever will track its prey until the target can no longer move. Usually a solitary breed, these dragons will only come together during mating season, and will flare out the brightly colored sails along their wings to help attract potential mates. Although it has been observed that the wyverns are nocturnal, they will often pick an open spot of sunshine to curl up in and sleep as the day passes by.

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.

Endeleza is very outspoken and frank when it comes to her opinions (of which there are plenty). Some would call her debates ranting, accusing her of stirring up arguments for the sake of sick pleasure. Indeed, many do not like her because she makes herself heard in loud, vehement ways that come across as rude and angry, even though it is simple passion about the topic. She has little patience for other dragons' complaints -- it takes very little to set her off one one of many favorite topics about how spoiled younger generations are. But she is quite intelligent and never fails do her research on a topic before entering the debate, making her a very interesting conversationalist. The only one who can stand Endeleza (as well as being one of a few dragons who are smart enough to hold conversation with her) is Azkaor, who somehow seems to never take anything to heart despite his own competitive tendencies, not to mention being screamed at daily.