Tongue Twister

You magically force a creature to speak a tongue twister together with you which you perform with ease. If the target can speak any language, they must succeed on a Charisma saving throw or take 1d6 psychic damage and can speak only falteringly until the start of your next turn.

This spell's damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).