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.

Bipennis is the second lowest in the chain of command under Toxic. Unlike her superiors, she has a mutual respect for the dragons beneath her. However, she has no problem beating anyone who goes against her preaching, as they are also going against their master by doing so.

Bipennis has been given, or more likely taken, the role of spreading Toxic's beliefs and ideas about his Vampire army. She teaches newly turned Vampire dragons what they need to do for their master and what to believe in, which is ultimately the Vampire army cause: to turn the dragon world into the undead. Bipennis knows for sure that they will never achieve this, but trying never hurt anyone.

She is a relatively calm dragon, albeit a little passionate about her teachings. Perhaps a bit too passionate, as she beats any dragon who goes against her. Maybe passionate isn't the right word for it. Her knowledge vastly outnumbers many of those in the cave, which can be good or bad depending on how she, or Toxic, uses it.