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.

The 'void' part of these nebula dragon's names are a symbol of their family lineage, coming from a dragon named Legend of the Void. The void nebulas take this family name proudly, as they are part of the essence of Lotv's (Legend of the Void) power and status.

Opal is a fiery dragon that can sense other creature's emotions, thoughts, and locations through the use of Lotv's ability to sense the aura of living creatures. She flies at top speeds which allow her to break the sound barrier with a powerful blast of hot air from her strong wings She often whips up wind-based weather problems such as sandstorms in the desert, hurricanes in between the alpine and coastal, and the occasional unsuspected hail that followed her to the forest from the alpine.