"For 3 seconds after using Blinding Flash, all of your attacks are empowered to deal 30% additional weapon damage as Holy."
Take this build, for example:
If I have Sweeping Wind up, do those hits proc it? Do the Tornadoes the Rune spawns proc it?
Does the aoe damage from all 7 SSS attacks proc it?
Does the Submission Rune proce it?
Does the Thunderclap AOE proc it?