I would ask that the delay to Mantle of Channeling of 1 second before the legendary buff starts to be re-considered. (Re: PTR 2.6.8 initial patch notes (PTR feedback forum is not yet open.))
I assume (and I don’t like to assume, but there wasn’t Developer comments to address intent) that this nerf was related to trying to break the Star Pact “Bazooka” Wizard - but this change seriously impacts a number of other builds and classes.
For example my Legacy of Dreams Rapid Fire Demon Hunter. I channel Rapid Fire on my right click, whenever I left click channel is interrupted (I place Vengeance here for longest time between clicks). What this Mantle of Channeling change will mean, is that in addition to temporarily losing my Wojahnni Assaulter stacks when I reset my Vengeance, I will also lose my Mantle of Channeling bonus for a second. While the damage change may not be too significant (as I’ve also lost damage via Wojahnni Assaulter), the 25% damage reduction is critical.
I am channeling Rapid Fire, and resetting, in large groups regularly on this build, often with multiple elites around, losing the damage reduction for a second could actually kill my DH.
I know there are also some versions of Whirlwind Barbarian that also use this, and potentially other classes too.
Hence please review this Blizzard. If the intent was primarily to impact the Star Pact “Bazooka” Wizard, could this be re-visited to see if the changes to Deathwish and Etched Sigil are sufficient by themselves, or if no if there is another change which won’t impact other classes and builds as much.