It was previously believed that purple dragons were exclusively female, but this is not the case. Recent environmental shifts have revealed the existence of both genders of this breed. Female behavior is well known; they are primarily herbivores but will eat meat during mating season. On the other hand, very little is known about the behavior and habits of male purple dragons.

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.

Tlienirsizhyllai, despite her genial appearance, is a rather impatient purple dragon. She does not suffer fools lightly and can act threateningly towards anyone or anything that she perceives as an annoyance, yet the most she ever does is give mock-chase and demonstrate the power of her ear-splitting screech.

Anyone desiring to get in Tlienirsizhyllai's good graces must prove their worth to her. Should it amuse her she may demand some task to be performed for her. On occasion she challenges the individual to a duel of knowledge. Those who perform well may in time gain the purple dragon's warm regard.