I always straight tank this fight on PLD. Deal with 100tonze swipe by run through, 100 tonze swing with divine veil / aegis / sentinel / rampart / hallowed. Never doubling them up of course. self healing a lot. done plenty of 90 second kills whilst working on relic.

I open with a flash/voke but never use it again unless AI, if he doesnt AI, I dont use them.
(note: im happy to hallowed ground in this fight as I tank miser on WAR for extra DD)