[REJECTED] add in quest line for Ashbringer can't be killed or attacked (hidden artifact)

[aziz1604]

WoW Freakz link: https://www.wow-freakz.com/
Bug description: The quest line for the hidden artifact of paladin dps (Ashbringer)
i was going to start the quest line to get the hidden artifact i've got the 2 books i talked to the npc in donjeon that book and the toren i did all fine until i stopped in the phase where i need to kill the npc becose he drop me something (already saw it in youtube and question the ppl who get that hidden artifact ) the problem is that npc is there i can see him but i can't attack him it's like he's my ally side so i can't do any damage on him nothing and i can't continue this quest line to get the hidden artifact if i don't kill him so i will be thankful and all the serveur members if u fix this problem as soon as possible
Proof: this screen shot can prouve it
https://imgur.com/a/SKeu3KB
screen with .gps : https://imgur.com/a/3vCFBGc
the second prof for youtube
https://www.youtube.com/watch?v=EjKg8Hyx2fc the exacte time (6:26)