Vampire Dragons are members of the undead. They sustain themselves by drinking the blood of others. It is said that they are only “alive” at night, and seem dead or asleep during the day, as they cannot endure sunlight for long periods of time. Vampire Dragons can only reproduce by changing the eggs of other dragons, puncturing the shell with their fangs and injecting venom that kills the baby inside.

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.

Killer's Death has an urge to change eggs into Vampire dragons, but he cannot get close enough to sink his fangs in, thanks to Sky of Thunder Bolt. She is the main protector of the dumped eggs. Every time he gets near enough to transform an egg, just as he gets ready to plunge his deadly fangs in, she appears out of nowhere and knocks him to the ground. He tries to fight back, but Sky of Thunder Bolt has mastered a move that renders Killer's defenses useless. She squashes Killer's head to the dirt and puts all her strength on his head. Next, she puts her hindquarters on the rest of his body. He doesn't dare fight back because he knows the eggs aren't worth injuring his precious fangs, as Sky of Thunder Bolt has enough strength to pry them out of his head. After failed raid attempts, he creeps away into the forest to kill some hapless mammal.