Magelight Pygmy Wyverns make their homes deep under the earth, and produce a flammable, oily secretion from the tips of their tails to make light. The substance is long-burning, and brooding mothers douse their eggs in the oil while they incubate. Hatchlings’ tails subsequently catch fire at birth after coming into contact with their burning shells. Magelights are useful to human miners, as they are docile and easily trained to alert to the presence of methane damps, caved sections of tunnel, and proximity of nearby dragons to ensure the safety of crews.

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.

Pygmy dragons are the smallest category of dragons, being on the same scale as domesticated animals. They are often found around concentrated populations of dragons, relying on their larger brethren to ward away potential predators and leave scraps. As such, the majority of a pygmy’s diet is scavenged. Due to their tiny size, pygmies do not breed with larger varieties of dragons.

Esaier is more like a mole than a dragon. She'd rather stay under the earth, burrowing and finding items, more than she'd want to be in the sky. But when she is in the sky... no one can catch her. But one can always find her. When she plays hide-and-seek with the other dragons, she's normally the one found first. She loves to help miners when they have to find something underground. She makes sure that they don't run into any other dragons, since that might not end well.