Blue-Banded Dragons are found primarily in mountainous regions with lots of precipitation. Although terrestrial, they are most often sighted near running water and feed mostly on fish. Females are very social and form tight-knit family groups, while males are strictly solitary and will fight any other dragons that enter their territory outside of breeding season. For this reason, females tend to drive males away when they are not ready to mate, or when they are caring for hatchlings. The amount of striping varies greatly from individual to individual, with some dragons having only faint dark streaks on their sides and others appearing to be almost entirely dark blue with paler markings.

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.

The Napkin of Truth never lies. She is a valuable witness for goings-on in her group and doesn't mince words when she wants something, and she can't be trusted to tell a lie to save another's dignity. She seems to make decisions arbitrarily or randomly, and others would scold her for it if she weren't right so often. If shown a lineup of 20 things and asked to select the correct one, after muttering about how short of information she is and what an unfair situation this is, the Napkin of Truth will write down the choices on a wall, throw a pebble or other small object at it, and declare whatever was hit to be the answer. To the amazement of all, she's never picked incorrectly. Some say that she isn't making decisions arbitrarily and knows things that she isn't saying out loud, while those who study magic wonder if she has some kind of luck spell in effect, though no one has detected any magic use around her.