Arcing Ring

Once per turn when you hit a target with a nonmagical attack, you can choose to deal an extra 1d4 Lightning damage with the attack. If you roll a 4 on this extra damage die, you can deal 1d4 Lightning damage to another target creature within 5 feet of the original target. Any target which receives 4 Lightning damage from this property is pushed up to 5 feet away from you and can't make opportunity attacks until the end of its next turn.

Each time you deal 1d4 Lightning damage with this ring, you can add a charge to an item which has charges.