This breed of dragon results from eggs or hatchlings that have been neglected. They are usually rebellious, not obeying their masters, sometimes even attacking them. However, their neglect as a hatchling leaves them crippled, and they are weak compared to other breeds, causing them to stay with their masters for protection.

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.

Deus was originally nothing but a mere cassare. A failure of a failure, her father had failed to become the prize of his parents. As such, he was left alone and developed a nasty disposition towards his own children. As Deus was born a cassare, her parents abandoned her for dead, rejecting what they perceived to be nothing. She was taken by a maniacal 'researcher', where she was treated as a disposable resource. They broke her, day after day she was forced to endure unspeakable suffering. She curled up in the shell, waiting for death to take her, but the gods had other plans for her. Weak and exhausted, she kept waiting for the inevitable, her body withering into a sickly shade of green, until she could wait no longer and burst from her shell. But it was all for naught as she was too late. She had been broken beyond repair.