Festering Cudgel

Damage. 1d4+1 Bludgeoning   Gross and Icky. You gain a +1 bonus to attack rolls you make with this weapon.   Impart Disease. You can use an action to point this weapon to a creature within 30ft. of you that you can see. The creature has to make a Constitution saving throw (DC 15). On a failed save, they become Diseased and are infected with Fenrot.   Dark green spots appear on the skin, most prominently around wounds and injuries. While infected the creature becomes vulnerable to all Slashing and Piercing damage. If they have resistance they lose the resistance. If they are immune they become resistant instead. These effects last until cured by Lesser restoration or by a cure of similar or stronger strength. You can use this feature once per long rest.