Because of their dual personalities, Duotone Dragons are extremely nervous and indecisive. When confronted, it is often the case that one head wants to fight while the other wants to run, resulting in the dragon trying to go in two directions at once. They are omnivorous, choosing to eat both vegetation and meat—although perhaps this is just another outcome of their indecisiveness.

Both heads can control the body, with each head having only marginal control on the opposing side of the body; this works when both halves want the same thing, but does not work as well when there is a disagreement. Despite this, Duotone Dragons can fly quite well, but can crash through the trees if one head becomes distracted.

Duotone Dragons can fight, using their large claws and heavy face plates to rend and bash their opponents.

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.

Two-headed dragons are unique enough to deserve a separate classification from ordinary dragons. They have two necks, two brains, two mouths, but one stomach and one main body. The two heads usually work together, but there are times when they will fight each other, snapping back and forth. Their unique anatomy prevents them from breeding with single-headed dragons.

Liasean likes dogs because of their loyalty. Loyalty, to him, is very important, as well as knowing who's in charge and who needs to be put in their place when things are getting out of hand. Liasean likes making commands but can be a bit bossy and may even lose his temper sometimes, but that's with other dragons. With dogs, while it's true he may display authoritative behaviors, he is more merciful with them and even considers dogs as his babies. He likes when someone labels him as the alpha head.

Naesail likes cats because of their expectations to be pleased. Proving his worth is most important to him, no matter how emotionally draining it may be. Some dragons say that he tries too hard to please the cats that are never pleased, and the same goes for certain dragons who are probably just as difficult to please. However, he finds it rewarding when he succeeds to please any cats and, by extension, other dragons. Liasean thinks of him as the omega head.