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.

Fidelitos is a large, imposing Guardian dragon of massive proportions, with huge muscles, thick neck and powerful tail, sharp teeth and claws, and a regal, formal bearing. He takes his job very seriously, but he is also perhaps the most gentle and soft-spoken of the Den's clan to date. He has a very philosophic outlook on life, valuing it above all else, and was once observed silently shedding a few tears for a beetle he chanced to step upon. He is so serious and thoughtful, most of the time, that the rest of the dragons of the Den will often tease him.<br/>The only time he is known to "cut loose" is when it snows, though, and he more than makes up for it with his silly behaviour in those circumstances... after all, that shield-tail makes a great natural toboggan!