Guild Wars 2

Hi, I just saw one guy who never seems to die from our server HoD.
I tried to talk to him but I couldn’t.

Can any SoS can confirm this?
It looks like to me some of you were trying to kill him but he never seemed take any damages.

and if he was being invincible, what was that?
hack?

by the way this happened WvW Hod boarderland near garrison

There is an invincibility cheat, yes.

apparently he was healing enemies (SoS) as well, how is this possible?