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.

Shelldo is not like most dragons of this type. She does guard but she doesn't guard creatures she guards valuable objects. the items are brought to a cave and tossed in. Then she sits in front of the cave . No one has ever stolen anything that was put in her care. When it comes to thieves she gives them 1 chance to leave the cave empty handed but alive. The first chance she blocks there path then growls go away if the thieves comeback then she isn't so nice, when they comeback to try to steal again she eats them. Thing is thieves never learn cause she's gotten fat through out her years of service.