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.

Behold, seeker of the dragon lore, Retiario of the Guardian dragons. His name is derived from one of the Roman gladiator classes. There is no information about his age or his descendants. He is very dominant and daring, as many scars on his scales show. When he wandered into other Guardian dragons' territors, he did not flee but challenged the male—and won. The female accepted him as her new mate when he proved to be as harmless towards the frozen hatchling she had as he was harmful to her former mate.

He now is the mate of Ovequel, another Guardian dragon.