Dark Rend

A void of darkness streaks toward a creature of your choice within range. Make a ranged spell attack against the target. On a hit, the target takes 3d8 dark damage, 1d4 force damage, and the next attack roll made against this target before the end of your next turn has dis-advantage, thanks to the darkness that latches onto the target until then.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for each slot level above 1st.