What am I doing wrong on Aflrig Wolfmaw?

This is my first character, I'm level 81 now, spellblade, running the first few level 90 monoliths with no problem, bosses go down without much trouble, even if I get hit a few times (except long charge up AOE's of course, but those you should just move out of the way).

except tier 2 alfrig wolfmaw keeps oneshotting me with his swipe. Not sure how. I have like 130% physical resistance so even if my res gets shredded I should be comfortably at 75, I have quite a bit of ward generation. I also try to keep Fire Ward up as much as I can, with the 40% less damage skilled in.

Is alfrig just reallly overtuned? Tier 2 arena should be level 70, why does alfrig hit so insanely hard?