Classic Twisting Corridors ... Scaling?

Is the something I am missing about Twisting Corridors? I did layer 1 earlier this week which went fine, but doing layer 2 seemed broken.I looked over my buffs / debuffs / anima powers that did not explain why all of a sudden after floor 12 I was getting auto’d for 30k hp, I had to cheese floors 16 and 17 but was able to get through. I made it to the last boss and was promptly 2 shot for my remaining deaths.Probably not gonna step in there again to not deal with what I would put in the “sub-cancelling level of not fun bucket”.My ilvl was 203 doing layer 2, I had 60k hp and was pulling ~100k dps. via /r/wow https://ift.tt/3i7lxqq