You hurl a mote of shadow at a creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d8 necrotic damage, and the next attack roll made against this target before the end of your next turn has advantage as shadows cling to it, making it easier to strike.
At higher levels: The spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).