Harm

Description

You unleash a virulent disease on a creature that you can see within range. The target must make a constitution saving throw. On a failed save, it takes 14d6 necrotic damage, or half as much damage on a successful save. The damage can't reduce the target's hit points below 1. If the target fails the saving throw, its hit point maximum is reduced for 1 hour by an amount equal to the necrotic damage it took. Any effect that removes a disease allows a creature's hit point maximum to return to normal before that time passes.

Harm appears in System Reference Document 5.1. Text from the SRD 5.1 by Wizards of the Coast, CC BY 4.0.