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.

Many balloon dragons admire Blimp Beast for being an especially inflated fellow. But the truth is that it isn't his useful floating gases that result in his puffed figure. No, it's just that he has gas--rather bad bouts of gas, in fact. Often, just as he's about to reach a scrumptious piece of fruit, he toots and goes flying off in the opposite direction. He finds this extremely frustrating (not to mention embarrassing) and is looking for someone who knows healing magic, hoping they can help cure his little problem.