I found out that if you do the divider of heavens attack (w,w,lmb) you can actually stab through the front of the berzerker in question and hurt them that way. If combined with Answang hunger then you can also heal off of your attacks dealth with the divider of heavens attack.


Of course with that in mind it still takes a bit, and on higher difficulties I totally recommend using this method as you wont need to spam the healing chi ability as often using this method.

If there are multiple I suggest baiting them into a spot where they can't charge, a.e. stuck against a tree, or a wall then just jabbing at them till 1 dies. Then you can bait out the charges.