Ego Shock

You attempt to suppress the personality of a creature you can see within range. If the target can hear you, it must succeed on a Charisma saving throw or take 1d8 psychic damage and suffer disadvantage on your choice of the next Intelligence, Wisdom, or Charisma check it makes before the end of your next turn.

Cantrip Upgrade. The damage increases by 1d8 when you reach levels 5 (2d8), 11 (3d8), and 17 (4d8).