A firearm made by the Dragonamarked House Cannith of Eberron. Using a bonus action you must first prime the gun, before using an action to shot. When fired, the weapon casts Chain Lightning at 6th level. The weapon has 4 charges and each shot expends 1 charge. To cast at higher levels, you can expend an additional charge per level above 6th. After each use the weapons has a cool down time of one round before it can be used again. The weapon regains 1d4 charges every day at dawn. When at 0 charges roll a d20, on a 1 the dragonshard crystal powering the gun breaks and the weapon no longer functions.