Charmed (1998)

S5E5 Witches in Tights

Title: Witches in Tights Plot: A demon manipulates a young boy, pushing him to become the embodiment of a sinister comic book villain in a plot to snatch an Elder's formidable powers. In a desperate bid to thwart this malicious scheme, the boy uses his abilities to morph The Charmed Ones into extraordinary comic book heroines, each endowed with incredible strengths. Together, they must confront the looming threat and protect the Elder’s powers from falling into the wrong hands.