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.

When Emeralds Sickling, as Mommy I'm Sick is called by the others, was born, the egg rolled away from the nest Jewel and Lady Winter had made. It was only 7 days later that the little egg was discovered, but it had already cooled down so much that her parents were fearing the worst.

When they asked Himmelsflamme to breath fire on the egg to warm it up, it showed first signs of life and hatched just in time.

But alas the coldness Sickling had endured, while being in her egg, had changed Sickling forever.