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.

Argentine is a very curious dragon. Even as an adult, anything new to her fascinates and pleases her. She has a strange obsession with Magi dragon scales, because of their almost enchanting orange glow. She will offer to guard the eggs and hatchlings of Magi dragons for a few days if the parents are busy, in return for a few of the parents' scales. The parents usually return to find the cave unexpectedly tidy, because Argentine always collects any scales that the hatchlings may have shed, too. Argentine's own home is a cave she shares with many other dragons, though she has created a small niche in one corner of her cave in which she keeps her precious Magi scales.