Callous Words

Select 1 creature of your choice that you can see within range. They must make a Charisma saving throw. If the target fails the saving throw, any time they speak out loud verbally during the duration of the spell they take 2d8 Poison damage, as well as generate a malicious green substance in their mouth. This does not apply to sounds or anything Incoherent.

At Higher Levels. When you cast this spell using a 3rd level spell slot, the poison damage is increased by 1d8. When you cast this spell using a 5th level spell slot, anything that the target requires a verbal component for will fail and have no effect. (e.g. The target using a scroll that needs a verbal component.) When you cast this spell using a 7th level spell slot, the poison damage is increased by another 1d8. When you cast this spell using an 8th or higher level spell slot, you can target up to 2 additional creatures.