You summon a ghost-like bone hand at the location of a creature within the casting range, and attack the target with the bitter cold of the tomb. And make a ranged spell attack on the creature. When it hits, grab the target with the palm of your hand and cause it to suffer 1d8 points of desolation damage, and you will not be able to restore health until the beginning of your next turn.
Chill Touch 5e
Classes: Sorcerer, Warlock, Wizard
Casting Time: 1 Action
Range: 120 feet
Components: V, S
Duration: 1 round
If your hit target is an undead creature, all its attack rolls against you before the end of your next turn have a disadvantage. When you reach 5th level, the damage of the spell increases by 1d8 (becomes 2d8). At level 11, add 1d8 (to 3d8), at level 17 add 1d8 (to 4d8).