Ember Dragons have a great affinity for hot environments. While they themselves are not hot to the touch, their tendency to lurk amongst smoldering ashes has caused many to believe they are fire-starters. Their dully glowing markings serve many purposes: acting as a means of identification between individuals, as an important part of mating displays, and as a way of showing aggression. The long, low build of the breed makes them ungainly in flight, and the thick fleshy membranes of their wings hinder them further. As such, it is rare to see an Ember Dragon take to the air. Ember Dragons are also not particularly sociable; females tend to be defensive, whereas males are more aggressive. Once they have settled with a particular group of dragons, Ember Dragons are incredibly loyal and will defend their pack by any means possible.

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.

Polyfire specifies that his name means, "One Fire". Before his abandonment, he belonged to the pack of the Ember Ones. They are the ones who first start conjuring fire from their mouths. Though, not many live today as they lived thousands of years ago. This dragon was left alone because his parents thought he would make a family to extend for generations. Polyfire today isn't fond of winter, but loves the times when the sun burns brightly (the most). He can not survive outside in the forest assuming that he will burn everything in his path. Instead, he hunts underground where the heat is nearest. Despite his aggressive nature, Polyfire explores the new world besides the volcanoes and magma chambers. He works aside with Guardian Shen and Paladin Dong as protectors of the group.