Pentagram

A pentagram is a symbol used by sorcerers and witches for casting spells. It is usually in the form of a star made of five crossing lines inside of a circle.

Empath: The Luckiest Smurf stories
In the EMPATH: The Luckiest Smurf story series, the pentagram is normally found among evil sorcerers and witches, while Papa Smurf rarely if ever invokes this symbol. Tapper considers this particular symbol to be demonic.