Weighted Words

Your words have weight and what you say can take root in someone's mind. Unless the target succeeds on an Intelligence saving throw against your spell save DC, the target takes 1d6 psychic damage, and the next attack roll against it before the end of your next turn has advantage, since it is temporarily too distracted to defend itself well. The damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6) in this class.

Whenever you deal damage with this cantrip, you can expend a spell slot to deal extra damage to the target. The extra damage is 2d8 for a 1st level spell slot, plus 1d8 for each spell level higher than first.