Updated for patch 9.19
Summons a storm around himself for 3 seconds, dealing 37.5 / 75 / 112.5 magic damage each 0.5 seconds to enemies in the area. Each enemy struck 3 times is stunned for 1.5 seconds. The storm can deal a total of 225 / 450 / 675 magic damage.
Ninjas gain bonus attack damage and ability power.