The difficulty spike is so over the top that all prior posts on this subject are about letting your minions do the work.
My issue is that the spike is far too over the top. I am geared enough to tank Diablo and kill him in under 2 seconds, but god help me if I try to even run away from Baal as he teleports to me and one shots me, and even my minions last only a few seconds before all of them are killed.
Playing as a Sorc. I have respec'd multiple times, and I am pretty sure I have to follow the Sorc. guide in the Guides forum to the letter to be able to defeat Baal. I have given my Barb. ally all buffed sacred items and he still dies quickly as well. All my resistances are 200%, (88% with cap) except phys. 20%, and magic, which is 0%.
Anyway, I will figure it out on my own, I just wanted to say that the difficulty spike is inane and should be changed.