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.
Techniques
Unlocked at level 21
Blade Storm
Intensify the vortex, increasing the damage per stack to 145% weapon damage. This increases the damage with 3 stacks to 435% weapon damage.