Your damage taken is reduced by 50% while Sweeping Wind is active.
(4) Set:
Every second Sweeping Wind spawns a decoy next to the last enemy you hit that taunts nearby enemies and then explodes for 1000% weapon damage for each stack of Sweeping Wind you have.
(6) Set:
Lashing Tail Kick, Tempest Rush, and Wave of Light consume a stack of Sweeping Wind to deal 3000% increased damage.