Cackle

You cackle wildly at one creature within range that can hear you, unleashing the power of your scorn and animosity. The target must succeed on a Wisdom saving throw or take 1d8 Psychic damage and have Disadvantage on the next ability check or saving throw based on Strength or Dexterity it makes before the start of your next turn.

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