Stone Dragons have a tough outer covering made of a stone-like material. They eat rocks, using the minerals they contain for nourishment and to keep up their stone outer shell. They rarely move, and are the heaviest of all types of dragons. Although they have wings, indicating flight ability, no one has ever seen a stone dragon flying.

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.

Phycology has an undead lichen horde. To her knowledge, lichens are not quite plants and not quite animals, but they are definitely living things, or in this case, un-living things. They died during a dry spell, and she poured water on them, reviving them but making them members of the undead. That's how zombies work, and that applies to not-quite-plant, not-quite-animal things—she's pretty sure. Unlike dragon liches, human liches, and other such things, Phycology's minions will never turn against their master and, in fact, do not do much at all. All well and good, because she doesn't like to move around, so her lich army is perfectly low-maintenance. To viewers, they just look like a bunch of rocks and logs with stuff growing on them, but Phycology is very proud and protective of her lich lichens, or lich-ens for short.