Chill Touch

You create a hand of holy ice in the space of a
creature within 120ft. Make a ranged spell attack
against the creature to assail it with the chill of
the holy ice. On a hit, the target takes 1d8
necrotic damage, and it can't regain hit points
until the start of your next turn. Until then, the
hand clings to the target.
If you hit an undead target, it also has
disadvantage on attack rolls against you until
the end of your next turn.