So for anyone curious who is playing a zon and is attemping the final fight for void - shrine craft (abandoned/quiet) an amazon javelin until you hit maelstrom. This allows you to wear a TU bone shield for magic defence still, then chuck some p amys in for attack rating/paragon passive bonus, and equip some ripstars (I didnt have ripstars, but am blown away at how successful I was without it). Ecstatic frenzy will do enough of a job to allow you to spam so much that the application of open wounds allows you to kill rathma last. First shot was a failure (I can't remember why), second shot I got so excited I tp'd out too early missing the Rathma swirls (im a cuck), third shot I got it. As long as you drop pots early around the arena, you don't have to worry about inner fire oskill switching, but if you want - you can use inner fire oskill on a belt if you don't have access to The Tannr Scutum. This will prevent you from teleporting out the death zone, but you are not locked out from spamming WDM attacks like wyrd for example. It's got a long range, and you can be lazy with aim. This allowed me to use bloodzon passive/paragon of course while using most of my regular bloodzon gear but gemmed (I swapped out after my Diablo kill into spirit walkers, cloak of flames and ran to void from there).
Case closed, maelstrom is useful finally.