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.

When Ember Nuria found the egg of Nelia Nuria high on a mountain, she decided to stay there for the night. A dragon there, who had heard of Elgar and wanted her egg to be raised there, snuck her egg into Ember's satchel that night. This mother hoped her egg would be appreciated, and maybe become famed in the land.

When Ember returned to the highest mountain of Elgar, her home, she raised the egg she had found. The creature that emerged was powerful, but loyal, and Nelia became a fierce protector of Ember and the hatchlings of Elgar. One day though, Ember heard growling, and found a creature just like Nelia fighting with her. The egg the mother had placed on Ember's bag had rolled out, and the egg had raised itself. Despite Ember's pleas for peace, the dragons fought hard, and Nelia defeated the other dragon. As she flew off, Nelia called after her, "You are unwanted!" which in her tongue, was "Nakusa". The dragon laughed and proudly named herself "The first unwanted", or "One Nakusa".