I've said this before in cutlass vs broadsword, and ill say it again, you CAN NOT control when you get a critical. Bladestorm is only worth it when you get a critical, which well say for the sake of argument, is 1 in 5. critical doubles the damage, so lets say that a basic bladestorm hit is 75
so you do 75 per bladestorm plus 75 for a critical. thats 450 damage
so since bladestorm does about 75% of combo damage so were going to say they do they take same time
100 x 6, 600.
same amount of time, higher damage without bladestorm.
Its just a common misconception about bladestorm its worth it if you get critical, but you only get a critical sometimes, and even then you might not get it on a bladestorm
then on a seperate note, HOW TO PPL GET 2 OR THREE LEGENDARY!!! O_O i only got one behemoth xD