Once activated, the device speeds up a cylinder of air in either the clockwise or anticlockwise direction. It then sends the spiral of air to roam the area around you for 6 seconds. The cylinder is 10' wide and 15' high and has a move speed of 45 feet. It moves randomly, and creatures caught within its path must make a Dexterity saving throw or take 2d4 bludgeoning damage and be swept into it. On a successful save, the creature takes half damage and is not swept in.   There can only be a maximum of 12 Small or Medium creatures and 2 Large creatures in the cyclone at one time. If this maximum is reached, creatures that would be swept in automatically succeed their saving throw.   At the beginning of your next turn, the cyclone dissipates and all creatures within it are left prone in the spot it dissipated at.