Needler Pistol

This strange pistol resembles a flask with a honeycomb of tubes sticking out its front. The weapon is powered by an energy cell stored at the base of the flask. Placing a full energy cell in the pistol gives the pistol 10 charges.

As an action while holding this pistol, you can expend 1 of its charges to fire a burst of glowing, needlelike darts from the pistol in a 15-foot cone. Each creature in that area must make a DC 15 Dexterity saving throw, taking 8d4 Piercing damage on a failed save or half as much damage on a successful one.

While the pistol has charges remaining, its energy cell can't be removed. Once the pistol has 0 charges, you can replace the energy cell with a new cell by using an action or a bonus action.