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.

Despite her breed's tendency to be indecisive and nervous, Zarlus has come up with a solution both halves can agree on. If one can use logical reasons as to why they shouldn't do something, they won't. However, if the other half can come up with just-as-logical reasons as to why they should, they will. This has often caused long debates between the two, the longest on record being two days, three hours, and thirty seven minutes. By the end of it no one could recall what they were arguing about in the first place. They've also taken up to splitting their name, the purple half insisting on the name 'Lus', and the red taking up 'Zar'. The idea comes from the other Duotone, Razak, or Ra and Zak as they prefer to be called.