For PvP ofc u need amp n crit or only amp (first way cheaper and more effective)
For PvP u need short skills from kind of Impact Stab, Heavy Slash, Charge, Power Stab, Round Cut. I see a lot of warriors to use those skills in PvP but dno exactly on what way they used it, but for that u need full crit + amp.
U can just use with low gear something like Siesmic Wave> Rolling Crash > Cascade Break> WW and can combine that with Force Kick and Charge.