Curse of the Necropolis

You call forth the power of the Necropolis to curse a target creature within range. The target must make a Wisdom saving throw or become cursed, suffering disadvantage on all attack rolls, ability checks, and saving throws for the duration of the spell.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the target has disadvantage on an additional saving throw for each slot level above 4th.