Balloon Dragons are so named because they are filled with a gas that makes them almost lighter than air, similar to balloons. However, they are not prone to bursting, as they are covered in tough skin and can deflate themselves if necessary. In addition, they generally are slow moving. They use their gas bladders to float to the tops of trees, where food is more abundant. They can shift their weight from their backs to their fronts, allowing them to reach leaves and fruit.

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.

Hellium is very strange. For one, whenever he is in the sky he does loop-de-loops, corkscrews and then he dives towards the ground, pulling up JUST before he crashes( nearly giving anyone watching a heart attack!). For second, whenever he is talking, he will move onto a little stream of thoughts, it'll take him about an hour to get back to the original topic, making listening to him VERY boring (The longest conversation was at least six hours, but the other dragon left before Hellium realized he was talking to himself). Hellium also does stupid dances in crowded areas, and doesn't mind shaming himself. His favourite fruit is grapefruit, and he refuses to eat leaves, although in secrecy, he gobbles a few down.