Talk:Vince of Thorolund/@comment-6132984-20130621145627/@comment-4511886-20130715191349

I know for a fact that summons can interact with NPCs as I've seen people use their phantoms to pin Lautrec in a corner in the Parish.

I also remember a Darkwraith that attacked Laurentius in the Depths. I know that Laurentius died from the phantom but he later appeared in Firelink.

My guess is that they can attack them but only the host can actually tell that it is doing anything. And there is some kind of failsafe that ressurects NPCs killed by invaders.