6th-level necromancy
Casting Time 1 action
Range 60 feet
Components V S
Duration Instantaneous

A creature you can see must make a Constitution save. It takes 14d6 necrotic damage on a fail, or half damage on a success. Additionally on a fail, its hit point maximum is reduced by the damage it took for 1 hour, but can't reduce it below 1. Any effect that removes a disease ends this effect early.