Mjertovjec

The Mjertovjec is an undead creature from the myths of Belarus. They have the features of vampires, werewolves, and witches, and are created when a werewolf or a witch dies. They may be the ghost of someone who cursed their father during church service. They are described as having purple faces. One could also become a Mjertovjec if they committed heresy, abandoned their faith, or committed crimes against God. They feed on human flesh and blood, hunting only at night. Mjertovjec can be destroyed by sprinkling poppy seeds on the road between their grave and their former house. They could also be killed by driving a nail into their coffin.

Citations:

Bennett, Adelaide. Global Legends and Lore: Vampires and Werewolves Around the World. United States, Mason Crest, 2015.

Maberry, Jonathan. Vampire Universe: The Dark World of Supernatural Beings That Haunt Us, Hunt Us, and Hunger for Us. United States, Kensington Publishing Corporation, 2006.