if you can equip a shield, SS if you can max block with it, or try using an Eld'd whistans
If you can't use SS then get DR from a CoA instead of using arreats
Dual Angelics/Ammy
Use drac's/gores for the OW, or use sandtreks or venomward/death gloves if they stack poison charms
Use fort if possible
Bring lots of mana potions :scratch:
If you hit them and they didn't hit you, WW away from them for a bit to see if you have triggered OW on them, and wait 8 secs hehe :badteeth:
If you do have max block you could try using a ETH stone armor/arreats, storm, gores, dracs, dual angelics, and an ETH fury zerker (fury is cheap so you can break these no problem). Just hit once and you auto 800+ dmg while they struggle to hit your high def.