Guild Wars 2

>_> You shouldnt be able to, from every source i know, NOTHING is supposed to damage him. that and the fact when he dies it just glitches the mission.

If you use your 5 as a guardian with a great sword, you can actually do some damage to him, for some weird kitten reason, it goes through EVERYTHING and actually does a sizable amount of damage, i finally reached the point to where i just laughed and felt like a raid boss, looking at a feeble player, healing through all of this kitten just passively.