Quote Originally Posted by ZDamned View Post
I tested this yesterday, and it is true, you can NOT block, OR parry anything behind you or too far to your side.
ALSO!
I do NOT tank T4 like a moron. I in fact hold everything in front of me, and did so for each of my runs.
It was also found that blockable enemy AE attacks/specials could be parried/blocked from any direction (back and flank included).

On the matter of enemy positioning; for myself, if it is a large group and I've already spent a decent amount of time positioning them (say 2~3 globals) I try not to worry too much when an enemy or two repositions them self too far to the side to parry, at that point I find allowing Damage classes to focus (melee positioning themselves optimally and generating hate for ranged classes to unload) is a more important contributor to overall damage mitigation.