B&B Robotics' Small Boom Shtick

Little brother of the most destructive rocket launcher in the multiverse, this petite explosive device packs a solid punch, just make sure to front it towards the enemy before you fire it away.

Blast Off. When you take the Attack action, you can replace one of your attacks with firing the Small Boom Shtick. Each creature in a 15-foot Cone originating from you in a direction you choose, including you, must make a DC18 Dexterity saving throw, taking 4d6 Fire damage and 4d6 Force damage on a failed save, or half as much damage on a successful one. A creature that rolls a 5 or lower on the saving throw is also pushed 10 feet directly away from you and knocked Prone.

Flare. Alternatively, as an attack, you can aim the Small Boom Shtick upwards and fire a harmless, bright Flare that illuminates the area. The flare flies up to 1000ft and, depending on the surroundings and if anything obstructs the view of the skyline, can be seen out to a range of 5 miles at night or 2 miles during the day. When you fire this flare, the Invisible condition is suppressed for all creatures within 60 feet of you that have it until the end of your next turn.

After the Small Boom Shtick was fired, recharging it requires 1 minute.

Small Boom Shtick uses magical ammunition called "Small Boom Rocket", available in the mundane shop at the costs of 200 gold per piece of ammo.