Pocket barrage buff making mystic reverb proc on everything

[Bards]

So if you put Mystic Reverb on your barrage, and hit a player with barrage. Mystic Reverb will be able to proc on everything that does spirit damage.

 

[Hubabuba]

It's not really a bug, more of a game mechanic.
If you look your damage source, barrage will be source because his amp works as damage from it's