Try getting second wind from pug, and the mar one, I think bloodspill? Basically a hp drain from your next ws.

Try stun locking with the stun combo, forget the names allready but if you time it right you get an extra free ws after the combo with greatly increased stun duration. This works for 2 enemies at a time, but you also get a free leg sweep at 30 the same method which can be used for more.

On my phone ATM, but when I get to my pc I can explain with better detail