Chicanery

You point at a creature cursing it with bad luck. The target must now roll a d4 whenever making an attack roll or saving throw and subtract it from the total. This effect is kept until a minute passes or concentration is dropped.

This effect can be broken by casting Remove Curse or Lesser Restoration on the cursed target.

At Higher Levels. When you reach level 5 the dice becomes a d6, a d8 at level 11, and d10 at level 17