AC Mitigation

[fabric9]

The AC softcap (beyond this point, AC from gear gives less return - the only exception being if it's a shield, as it goes beyond the softcap) was raised with every expansion. I don't have a good enough memory to recall what it was in Classic, but I'm fairly sure it wasn't over 1000 for plate classes.

I wouldn't expect to see a much better return for shamans past 700-800AC in classic, but I would expect that number to rise with Kunark. Do your tests at lower AC if possible to find the softcap.