Erm... did somebody else notice that the disorienting enchantment effect stacks on enemies? We heard about the blunderbuss Scon Mica's Roar: that it causes 6 times -5 defense to a total of -30 defenses. So after reading in the Attack Speed 2.0 thread I figured maybe this also happens if you hit fast enough with melee weapons.
I made a barb with all the attack speed stuff so he will hit as fast as possible and gave him the Vile Loner's Lance and Strike Hard (looks crappy, I know), both are disorienting. Then I developed this a bit further and gave him the White Spire and Wodewys for his second and third weapon slot and took Quick Switch. Now I ran into a bunch of Ogres and startet hitting. Soon after that Wodewys triggered Nature's Mark - that caused a long lasting debuff of 10 points to deflection and reflex in a pretty big AoE (maxed INT and Ring of Overseeing) - now I switched to the White Spire and hit everybody for -5 defenses and switched to the dual weapon setup and caused another -5 plus -5 from both weapons. As I had guessed, these debuffs stacked. So the Ogres had -25 deflection and reflex and -15 fortitude and will for a short amount of time (I also used Threatening Presence and shouts to debuff them further). And then - because I was pretty fast - the defenses of the Ogres dropped really fast because I was hitting without recovery and although you can't see it in the tooltip, the disorienting debuff of Strike Hard and Vile Loner's Lance started to stack "internally". I looked at the defelction and it dropped from somewhere near 50 to 20 and further - then staying there. Obviously the first debuff ran out and I hit the point where there was a balace between outworn debuff and new ones applied. Together with Threatening Presence and shouts the defenses of the Ogres were really really low. THey were not disabled, but easy prey for the rest of the party.
If you skip all that quick switching and just go for the Lance + Strike Hard (or even for the Lance and a small shield) and try to get crits to prolong the debuff duration plus max INT for long duration this may be a nice, reliable way to heavily debuff in an AoE without to much micromanagement and with litte resources.
Have to test this further if it's worth a build...
Edited by Boeroer, 20 January 2016 - 03:23 AM.