Wow. So I went QR/Combat yesterday with a Disc/Holy priest to try it. While the combo is ok, when I respecc'd back to full combat, I did some talent point juggling.
Now the ideas came from a mix of common sense, Ming, and my desires for arena.
I always would put 1-2 in Deflection, just filler points or unused points I never needed. Justification was, hey, it will help a little bit with damage mitigation.
So here I was yesterday respeccing, and my thought process on this is: Every Parry, is essentially X amount of life. Parry that MS, boom, you essentially just gained 2k life.
That's a lot of damage mitigation in the grand scale, and considering some of our weaknesses is incoming melee damage and warriors, that parry is good static damage mitigation.
So I picked up those 5. I dumped Imp SnD(ouch) and Imp EA. But got 5% parry and Riposte.
Now Riposte itself... Wow. It hits and crits as hard as SS, and costs 10energy. I was never turned on by the move until I finally used it. Coupled with your base 5% parry, you are now at 10% to mitigate that melee damage. What does this mean? That means if you are fighting a rogue, roughly once every 10 seconds you will get a 10 energy SS, and X amount of damage mitigated. Against a warrior you get a 10 energy SS every 15-20 (on average) and X amount of mitigation. Go to 5s, and put two melee on you, you are getting parries faster than you can use Riposte which is potentially thousands of damage your healers aren't dealing with. Add that to evasion and you will be avoiding a lot of damage overall.
Now my problem. A Riposte Macro. I use /castrandom Sinister Strike, Riposte.
Now, it works decently enough, but I find that I get a messege saying "You can't cast that yet" when I am at 40+ energy. Basically the macro is wanting to cast Riposte, but can't yet, yet still won't hit SS. I feel this can be a hinderance when sometimes I need that SS damage, and don't have time to wait 2-5 seconds not hitting a special.
Any clue?