Dual Blade Guide (Chaos, Big Bang, and Pre-Big Bang)

Both Final Cut and Blade Fury (in relation to Upper Stab) offer about a 23% increase in damage, except Final Cut affects all of your other skills as well.

I already posted in the other Chaos build thread about the strength of Slash Storm, and I think a post by JoeTang a long time ago "confirmed" it.

But wait a minute - Isn't Blad Fury a spammable mobbing skill and Final Cut a charge-required skill with a cool down? o.o