The Wrist Cannon of Friendship is a gauntlet empowered with the fiendish spirit of the wandering librarian of The Nine Hells, Lloyd Flawton.  It gives it's wearer the ability to unleash unholy blasts.

As an action, you can activate the cannon and fire it at an opponent using your ranged attack modifier.  The attack deals 1d8 force damage and the target must succeed on a strength saving throw DC (8+Proficiency Modifier) or be knocked prone

The cannon has 7 charges, and it regains all expended charges daily at dawn.  You can use the charges in the following ways while holding it:

• When you declare the action to attack with it, any allies adjacent to you may use their reaction to touch the cannon and imbue it with the power of their friendship.  For each ally that used this reaction, you may expend one charge.  Each charge spent in this way increases the damage by 2d8 and the save DC by 1.

Notes: Can only be attuned by a creature proficient in firearms that has friends., Damage, Combat, Wristwear, Handwear