Charmed: season 1

The forces of evil convened in hell to plot against the Charmed Ones.
"I've got it!" said evil sorceress Diabolicia. "I've got a spell to put on them that will ruin them!"
"What is, do tell," said skeptical demon Rancido.
"I have a variety of powerful spells to split them up or turn them against each other. One will make them complete sexual submissives to anyone they come in contact with. Another will make them totally jealous of each other and very mean to each other, and a third will lower their IQs while greatly increasing their libidos."
"Outstanding," said demon Cruelzino. "Which one should we try first?