Hellfire Wyverns are so named for their foul tempers and fiery visages. Their social structure places all females above all males, due to superior physical characteristics and violent dispositions. Forced subservience of the males causes them to become vicious, petty, antisocial, and passive-aggressive compared to the aggressive and social females. However, orphaned hatchlings raised by foster parents of another species can develop surprisingly even tempers and mellow dispositions, proving that their defining unpleasant nature is, in fact, a learned behavior.

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.

Most people think Hellfire Wyverns are all ways aggressive and will fight each other out of spite. This isn't the same with Fellheart. He was raised by gently hands of his master and watched by the peaceful adult dragons in his pack. Fell had never learned to be aggressive from these dragons and human and had never seen any other of his kind, therefore he became shy, very shy. He jumps at every little noise, hides when a stranger is around, and whimpers just from a tap on the nose. Even with these traits, Fell is enormous for his kind and with a terrifying appearance, scares some intruders away. With his job watching for danger, Fellheart does rather good at it. Of course if an intruder decides to attack, scared, whimpering, Fellheart comes right back out.