Surround yourself in a vortex that continuously deals 105% weapon damage to all enemies within 10 yards. The vortex lasts 6 seconds and is refreshed each time you strike an enemy with a melee attack. Landing a Critical Hit has a chance to increase the vortex effect up to 3 stacks for a total of 315% weapon damage.
While your vortex is at 3 or more stacks, Critical Hits have a chance to spawn a lightning tornado that periodically electrocutes nearby enemies for 95% weapon damage as Lightning. Each spawned lightning tornado lasts 3 seconds.