Amoranth’s Soul Rend

Choose a number of creatures equal to your charisma modifier (minimum of 1) that you can see within 60 feet. Each creature must make a constitution saving throw. On a failure, a creature takes 6d8 necrotic damage and their max hp falls by half the damage they take. A spell like greater restoration or better can remove this effect. On a success, a creature takes half damage and does not lose anything in their max hp.