Curse of Tongues

You curse a creature you can see. The target must succeed on a Wisdom Saving throw or be afflicted by the curse.

For the duration, whenever the target tries to speak, other creatures hear mad ravings and are unable to perceive the meaning behind their words. The target still hears the words they are speaking.

This spell does not affect the verbal components of spell casting for the target.

A remove curse ends this effect.

At Higher Levels. If you cast this spell using a spell slot of 4th level or higher, the duration increases by a day. If Cast at 9th level, the spell is permanent.