As an action, you assail a creature within 9 meters with grave rot, temporarily afflicting undeath. The target must make a Fortitude saving throw.
On a failed save, the creature takes 1d8 necrotic damage and it can’t regain health until the start of your next turn. If the creature is undead, it also has disadvantage on attack rolls against you until the end of your next turn.
On a successful save, the target takes half as much damage.
This spell’s damage increases by 1d8 when you reach 5th level (2d8), 9th level (3d8), 13th level (4d8), and 17th level (5d8).