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.

This dragon prides himself on his ability to outsmart opponents in games of X's and O's. Eschewing the simplest 3x3 two-dimensional grid, he plots out three dimensional 5x5 grids that most dragons have never bothered to look at, and challenges everyone he meets to play. He has been beaten only twice since issuing the challenges, and then only by dragons who had played him at least three times prior to that.

Teaktaaktow keeps a record of how many games he has won by setting aside one gem for each game. The quality of the gem signifies the challenge rating he gave to the game. This portion of his hoard is the most closely guarded because of what it represents to him. It is crowned by a diamond the size of his clenched claw, representing the only 7x7 four-dimensional game he ever played, a challenge against one of the dragons that defeated him in a lesser version of the game.