Guardian Dragons have large shields on the end of their tails. Although the shields appear to be heavy, they are light, yet nearly unbreakable. Guardian Dragons use their tail-shields, as well as their wings, to deflect attacks and protect others. Often, they will guard the eggs and hatchlings of a nest while others are away. They are generally peaceful, and will not retaliate unless necessary. They have no need to forage or hunt, as they are fed by those they protect.

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.

Taking after his mother, Balvull helps protect nests, though he's not viewed as crazy like her, since he doesn't talk to eggs like she does. Balvull does enjoy watching his mother, Raikira, talk to the eggs she guards, however. The hatchlings he and his mother protect view him as a big brother because he always plays with them and makes sure nobody bullies them around. He's even kind enough to give them advice when they need it.

When he's not ordered to look out for eggs and hatchlings, Balvull will travel with messengers to make sure they make it to their destination safely, and in return, the messengers will give him food. He's not one for much conversation, but he's as loyal as a dog to its owner. Balvull isn't a picky eater, but the one thing he enjoys eating the most is deer.