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.

Although Aqua's Drakula is popular among the vampire dragons, almost all "alive" dragons hate him and despise of him, he only has two friends among the "alive" dragons, Aqua's Thunder and Aqua's Flaire. The reason these dragons like him is because they have learned to look past the fact that he, like all vamps, drinks the blood of other dragons. He is actually nice for a vampire dragon. He hopes that he will be able to sire a few eggs. He reminds his owner to put in "Please judge a dragon by the dragon's personality, not the dragon's breed personality."