Damage Mitigation is either broken or I completely misunderstand how it works. It appears that damage mitigation aa's do nothing for my 65 enchanter. I just spent 27 aas on damage mitigation, and after all of my effort, I notice no difference in the dps of mobs when parsing.
I had understood that mitigation meant, "If the mob would have hit you for 100 damage, the hit will be mitigated to 90 damage". Fake numbers, but you get my meaning. A couple people told me I must have it wrong because it just couldn't be broken. I was on that band wagon until they added an innate damage mitigation to warriors.
I was testing against a 56 warrior with no aa's at all. When he sat down, a mob hit him for 128 damage. When our druid (No aa's) sat down, the mob hit him for 133 damage. Same for a couple other party members. When I sat down... 133. I had expected 110 or 120... after all... 27 fricking aa's, right? Nope. I have yet to parse any difference at all from the aa's effect.
Is this specific to my class or archtype, or is this happenning across the board?