Knuckle Dusters of Resist Poison

Description
The Knuckle Dusters of Poison Resist are a hybrid brooch/knuckle duster created from the wing and leg bones of an undead green dragon.

A Light, Finesse weapon that provides multiple bonuses. It gives resistance to poison damage, is a +1 weapon and can store charges for a special attack.

Charges are gained via failed saves against poison. 1d4 charges are gained per failed save and there is no maximum number. 1 per long rest, you can choose to add these charges as poison damage on an attack. This can be chosen after a hit is successful, allowing the damage to be doubled via a crit.

Acquisition
Commissioned in the Seven Pillared Hall