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.

He is said to have spawned straight from the fires of hell. No other name would have suited this hot scaled, and fiery tempered beast. Hellfire's Son will attack and terrorize anything that moves, bringing the kill to his mate when he cannot consume it. Many believe that these dragons are solely sent to earth to create chaos, and Hellfire revels in it. But he has a soft side. He loves his mate despite their different breeds, and when he is not being a romantic with her, he will defend her to his death. He is a romantic at heart, and a protective monster on the outside. Yet while he thrives in war and chaos, his meaning for his life is the horse dragon that holds his burning heart.