Friday the 13th: The Series (1987)

S2E26 Coven of Darkness

The trio sets out to retrieve a "witches' ladder," a beaded necklace that significantly boosts a witch's abilities. This powerful artifact is guarded by a group of white witches. Unbeknownst to them, a rival coven of black witches, initially led by Lewis Vendredi and later by his female second-in-command, is also after the ladder. They cast a spell that turns Ryan into an obedient servant, forcing him to steal the necklace from the Vault. However, Jack and Micki, tapping into Micki's hidden occult skills, manage to break the enchantment on Ryan, reclaim the witches' ladder, and vanquish the coven.