Well I'm missing something incredibly obvious, considering I literally had starks, two bloodthirsters, phantom dancer, infinity edge, and malady. I didn't have bloodrazor that time.
So, thue conclusion is that I'm doing it wrong, which is why I'm asking, what obvious thing am I missing? I used smite, I think I had the ult going, and hopefully wuju style, I did normal hits, then moved 90 degrees after I get hit, then kept hitting, since someone told me that Baron gets some sort of stack bonus if you stand in the same place.
I didn't have any armor though.