Tri-Horn Wyverns are a mountainous species, living in high altitude areas among rocks and snow. The rough and rugged climate has bred a tough and hardened species, prepared to do battle with both the elements and other creatures. Their most distinctive feature is the three-horned crest mounted upon their head, for which they were named; these toughened spikes are powerful weapons, used to battle against predators, prey and fellow Tri-Horn Wyverns. Both males and females of this species fight for territory and resources, and wear scars with pride. However, Tri-Horn wyverns have a soft side beneath their many spikes. They work in loyal packs, of which they are deeply protective; if one can gain their trust, Tri-Horn wyverns can be powerful allies through the mountains.

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.

Foehn Bruiser came off the worst in a battle with another Tri-Horn when the two were fighting for a certain mountaintop cave and the right to mate with a female Tri-Horn. Injured beyond the ability to fly, Foehn Bruiser may have died during a raging blizzard. Luckily, he was found in time by Aerobat and her rider during their attempt to brave the storm and return to the safety of their mountaintop village. The pair refused to leave Foehn Bruiser's side until the storm had subsided, after which Aerobat assisted him back to the village, where his wounds were treated by the village healers. Even though Foehn Bruiser quickly recovered, he had been deeply impressed that Aerobat, despite being a domesticated dragon, remained outside in the blizzard with him, and was even more impressed that her rider did the same. Out of gratitude, Foehn Bruiser remained in the mountaintop village ever since, even though he refuses to accept a rider.