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.

Balloona is a rather quirky dragon. As well as looking odd, she is constantly rambling on about the strangest things. Many of her fellow dragons hear Balloona late at night, muttering to herself oddly, supposedly saying something about giant mushrooms. The question of rather or not she's totally sane has arisen many times, but Toad, always having loved Balloona, defends her constantly against the other dragons. It's nearly certain that someday Balloona will meet her end flamed to a crisp by an angry dragon, but for now, she remains a horrible annoyance to her clan.