Blancblack dragons are a two-headed breed known for their hardiness and easygoing nature. They are omnivorous, with the cream head preferring to eat plants and the violet head preferring to eat meat, and can adjust readily to harsh climates. These dragons are sociable—both with other two-headed breeds and with single-headed dragons—and can often be found as adopted members of social dragon colonies. They are often considered symbols of balance and fairness, and likenesses of Blancblacks have been found in ancient ruins associated with law and justice. Females Blancblacks have longer tails than males, which they use as whips when defending a nest from predators.

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.

After talking to a blancblack from another region, Paf and Eq have decided that the common name of their species is somewhat inaccurate and have decided to begin a campaign to change it. Paf thinks they should be called "albinaubergine dragons" while Eq insists that is too long and they are a "paleplum". Paf thinks "paleplum" sounds like a homogenous light purple, which therefore does not fully reflect the dual nature of albinaubergines. Their name-changing campaign will go nowhere until they can agree on what name they are campaigning for. They are currently soliciting votes to see which updated name would be more popular, but are willing to hear additional suggestions. If they both like another portmanteau better than albinaubergine or paleplum, they may start campaigning for that name instead. They've already rejected "white grape" and a few other possibilities that neither feel will work.