Urokljivac
The Urokljivac is a mythical creature from Serbian Slavic mythology. The name translates to “Hex Man” and they are believed to be people who could cast evil magic from their eyes. They often do not know what they’re doing, naturally having those abilities or becoming that way through envy. They cast curses that could lead to misfortune, illness, or death, with the victims often being beautiful, rich, or children. Effects of the curse could be stopped by tying red thread around the wrist and wearing torn clothes or socks of different colors. They could also be stopped by amulets or religious symbols.
Citations:
Zlatic, Vladimir. Slavic Mythology: Demons in Serbian Folklore. N.p., Amazon Digital Services LLC – KDP Print US, 2021.