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Difficulty: Grandmaster

Casting time: 1 bonus action of activation

Duration: 12 attacks

This device features a tall, rectangular column where ammo is loaded, springs, and an attachment mechanism. When activated, a character can take a special ranged attack action, making up to 4 ranged weapon attacks. When 12 attacks have been made using the special ranged attack action, the device is empty. A ranged weapon attacks normally. This device can be used once per long rest. The device must be attached to a weapon during a long rest. During the long rest or short rest, 1 hour of time must be spent preparing the device for the next use.