Black Dragons are warriors. They are strong and capable in battles of force, but also ample magic users, capable of devastating opponents with their spells. Their bright eyes give them excellent night vision, which is why they generally hunt during the night.

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.

Dubhthach is the son of the Clan Leader Lachlan, and as such is second-in-command, taking full leadership of the clan in his father's absence. His mother is a Black dragon who went wild shortly after Dubhthach's egg was laid. Dubhthach knows very little about his mother, and often wonders why she abandoned him and their clan. Lachlan refuses to talk about it much and acts as if he has something to hide. Nevertheless, Dubhthach doesn't allow himself to get too caught up in "what-if" scenarios, preferring to keep his mind on his duties within the clan.

Dubhthach is very heavily muscled and is a force to be reckoned with. Along with his "brother" Chernobog and his son Koukakala, he guards the clan and helps quash any signs of rebellion and prevents any hostile activities.