Chill Touch

You conjure a skeletal, ghostly hand in the space occupied by a creature within the spell’s range. Make a ranged spell attack against the creature to strike it with the chill of a grave. On a hit, the target takes 1d8 necrotic damage and cannot regain hit points until the start of its next turn. Until then, the hand clings to the target.

If you hit an undead target, it also suffers a disadvantage on attack rolls against you until the end of your next turn.

The damage dealt by this spell increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).