Tried it a few times this past week. I was lvl 48 when I tried all 3 times, and I have ok gear only adept at the time was Anarchy Adept 3. Best armor piece is imbued ebon legs. Try 1 : Pristine Imbued Cedar 2h weapon (don't remember it's name, Great staff I think) Got the champ down to about 15%, I had over 40%. Then he started healing, my interrupts and stuns started missing and he healed back up to 55% I think. Then I ran out of power and died, he had about 15% left I think, maybe 20%. Try 2 : Imbued Teak 1h weapon and Shiny brass shield. He destroyed me, I misclicked a couple of times trying to use a defense token, and he probably had 50% left when I died. Try 3: Serrated Bone Dirk and Short Sword of Ykesha. Didn't make it to the champ. The first two times I killed Phosm Stonebend easily, so I wasn't really paying attention very well. Before I noticed it, I had 70%, he had 85%. Started trying harder and I died when he had 5% left
. I dinged 49 yesterday, and I'm gonna try again tonight. I think with the 2h, and using a couple potions, and maybe the defense tokens, I should be able to take the champ out.