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.

Defensia is not a dragon of many words, as a matter of fact she hardly speaks at all, causing her to seem very anti-social. She doesn't mind, she let her deeds speak for her and she's commonly found near a pillow dragon named Ploofels. Ploofels uses her fur to keep the eggs of the other dragons warm, while Defensia keeps a watchful eye. She also watches hatchlings and even goes after them to bring them back if they wander off.