Temporal Touch

You create a hand of ethereal sand in the space of a creature within range. Make a ranged spell attack against the creature to assail it with a moment of temporal distortion. On a hit, the target takes 1d8 nectrotic damage, and it can't regain hit points until the start of your next turn. Until then, the hand clings to the target.

At Higher Levels. This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).