Staff of Striking
Staff (arcane or druidic focus), very rare (requires attunement)

This staff can be wielded as a magic quarterstaff that grants a +3 bonus to attack and damage rolls made with it.

The staff has 10 charges. When you hit with a melee attack using it, you can expend up to 3 of its charges. For each charge you expend, the target takes an extra 1d6 force damage. The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff becomes a nonmagical quarterstaff.

Versatile. This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.

Damage: 1d6+3 (1d8+3)
Damage Type: Bludgeoning
Properties: Versatile
Weight: 4