Harm
6th-level necromancy
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Casting Time 1 action
Range 60 feet
Components V, S
Duration Instantaneous
You unleash virulent magic on a creature you can see within range. The target makes a Constitution saving throw. On a failed save, it takes Necrotic damage, and its Hit Points maximum is reduced by an amount equal to the Necrotic damage it took. On a successful save, it takes half as much damage only. This spell can't reduce a target's Hit Points maximum below 1.