Black Marrows are named for their dark colored hides which are encased in a distinct exoskeleton. Their skull and the top edges of their spine push out from under the skin as they age. As such, their young need excessive amounts of calcium for this armor to develop. The older a Black Marrow dragon is, the more skeletal their appearance. They often use their skeletal looks to lure in foolish scavengers or terrify predators. These vicious dragons love nothing more than to crack open bones with their stony beaks and eat the marrow inside. Voracious scavengers, Black Marrows will swarm and devour corpses both old and fresh, sometimes even dragging larger finds to the water to allow them to “ripen.” Despite their dreadful demeanour and often horrid stench, Black Marrows are devoted mates and parents.

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.

Mort Muerte Risque is one of the most feared dragons, having great strength and recovering abilities. He's able to almost instantly heal wounds during combat, making him a difficult opponent. He is also insanely stealthy with his corpselike body blending in the background attacking his unfortunate prey or enemy when they least expect it. Even though Mort is devoted to his clan he isn't that well appreciated by them. They fear him for his powers and appearance. Though genuinely kind, polite, loyal and happy with his clan, he has very disturbing personality flaws. He has a very sadistic side to him. He takes great pleasure hurting others physically, but he would never hurt his clan members. He seems to shows some sociopath like behaviour towards people or dragons that are his enemy. He is hardly scared of anything and seems to be oblivious to the fact that his clan is scared of him. Perceiving their behaviour even as relaxed. He has the same maniacally and contagious laugh as his mother.