You have a +3 bonus to attack and damage rolls made with this magic weapon.
fire damage
Momento mori - if u kill a target with this weapon next tie u have to reload between the next minute u can delay the reload by a turn
Firefly - when u reduce a creatures hit points to 0 they explode dealing 4d6 damage fire dex save 15
Proficiency with a Pistol allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Vex. If you hit a creature with this weapon and deal damage to the creature, you have Advantage on your next attack roll against that creature before the end of your next turn.
Notes: Bonus: Magic, Damage, Combat, Loading, Range, Ammunition (Firearms), Vex