Nebula Dragons are nocturnal creatures. With the best eyesight to be found, they are often seen staring into space. Each dragon tends to observe a particular nebula and will eventually change their colors and patterns to match it. As the nebula changes over time, the dragon changes with it. The more intricate the design of the nebula, the better chance an individual has of attracting a mate. It is said that the markings on no two Nebula Dragons will be exactly the same.

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.

Memory of Transformation is the youngest of his siblings. Seven in all are the Children of the Broken-Winged Crane, and it's said that the Memory of Transformation is more dangerous than all the previous six put together. He wears his namesake memory in the form of a broken crystal sphere, strung on his neck on a cord of dragonhide.

To speak with the Memory is to hear the voice of pain; to learn from him is to learn agony, for the memory he holds is that of the fall of the Yozi dragons. Few seek him out, miserable creature that he is, and fewer yet can understand what he says if he should respond. Nevertheless, he does not lack for petitioners; his are the deepest secrets of all his siblings, and those most likely to turn a listener to the Yozis' cause.