The location of this NPC is unknown.
Doomguard says: I serve only Sargeras! You shall join him too someday, mortal...
Doomguard says: If I am ever freed of these chains, I will return one day and slay you myself.
Doomguard says: The Twisting Nether's coldest reaches shall not hide you from my vengeance.
Doomguard says: This will be nothing when compared to the satisfaction I will feel when I crush your skull beneath my heel.
Doomguard says: You have delved too far into our magics. I will claim your soul myself!