Aethers Emissary

You have a +1 bonus to attack and damage rolls made with this magic weapon. in addition the firearm has 3 charges and regains 1 expended charge daily at dawn. While wielding this firearm you can expend 1 charge as a bonus action and select one of the following effects:

• Fire: the next time you hit a creature with a ranged attack made by this firearm, the target must make a dexterity saving throw. On a failed save, the target suffers from the burning condition. A creature who is suffering from the burnt condition is greatly hindered by additional fire damage. The next time a creature deals fire damage to this target, instead of rolling damage, the target takes maximum fire damage.
• Lightning: The next time you hit a creature with a ranged attack made by this firearm, the target must make a dexterity saving throw. On a failed save, the target can’t take reactions until the start of its turn. In addition, each creature within 10 feet of the target must also make a dexterity saving throw. On a failed save the creatures 1d6 lightning damage.
• Cold: The next time you hit a creature with a ranged attack made by this firearm, the target must make a constitution saving throw. On a failed save, the target has disadvantage on the next weapon attack roll that it makes before the end of its turn. In addition the targets movement speed is reduced by 10 feet until end of its turn

Proficiency with a Hand Crossbow allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, despite this magic item being at base a hand crossbow, I fully immagine this being a pistol/ firearm. the only reason I choose for it to mecanically be ahand crossbow is because in my pirate campaign setting we are allowing firearms to work the same as hand crossbows when it comes to damage and feats, Damage, Combat, Ammunition, Light, Loading, Range, Vex