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.

As his name suggests, Burning Cough has a restless esophagus. Quite plainly, he is a pyromaniac. Being a Hellfire, it's easy for one to set off his temper. When Cough becomes angry, many times he will make that dragon's life absolutely miserable by setting everything that dragon owns on fire. When he isn't angry, he will fly around, setting human villages ablaze. However, there is a type of anger that one should never make Burning Cough become. When he does, he sets that entire dragon's homeland on fire, destroying not only their home, but also their prey. The dragons of the Tribe have extreme difficulty controlling him, wishing they could only get rid of him. However, they run the risk of having him burn down their island.