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.

Sangkrev is considered upright and genteel by the high Vampire society to which he belongs, and he doesn't much care for the "youngblood generation" that insists he is otherwise. There is nothing wrong with drinking dragon blood, nothing wrong at all, and he sees no reason that his refusal to abstain should be taken as anything but the following of millenia of Vampire tradition. He puts great pressure on his coven matriarch to raise newbloods in the old traditions, but really that is unneeded, since she sees no more reason than he to waver from tradition. Other dragons have always been prey; that's just how it works.