Acidic Blight

You reach out to a creature to alter its molecular structure by converting various chemicals in their body into highly acidic compounds. The creature must make a constitution saving throw at the begining of each of it's turns, on a failed save, the target creature takes 4d8 acid damage, or half as much on a successful save. If the target creature is reduced to 0 (zero) hit points by this spell their body melts horrifically and is destroyed.