So, i just noted that this trait seems to be bugged again?
I was in lengthy battles with a friend of mine, spammed aegies left and right and i know it triggered on him, as well as me, with pretty much every hit because i saw the heal from Pure of Heart as well as the damage from Shattered Aegis, but this?
The buffs from Wrathful Spirit only applied to me and i know it worked on allies at some point since i played the same build for a while now.