The troll cross is a powerful protective symbol in Scandinavian folklore, believed to safeguard the wearer, animals, and dwellings from trolls, evil spirits, and negative influences such as illness and curses. It symbolizes protection and strength and is often worn as an amulet or placed above doors to prevent misfortune from entering. Formally, it is often modeled after the Othila rune, which represents heritage and the connection to ancestors.