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.

Ripley is violent and anti-social; he hates any and all dragons that attempt to approach him. He grudgingly respects his tamer and will submit to female Hellfires, but he refuses most other forms of social interaction. He will begrudgingly mate with other dragons willing to put up with his temper. Ripley's favored activity is hunting, which he excels at. He will violently hunt down and kill his prey until they are no longer able to fight back. He likes to bite the heads off his prey.