With all the bugs going on lately, this one might not last too long. When you kill Deathbringer Saurfang, sometimes he'll hit 0 HP, keel over, but still be targettable and attackable. Makes it hard to loot the chest, but it also allows you to level your weapon skills all the way up while afk inside an instance. Pretty convenient because it's inside away from prying eyes and also because he doesn't attack back. Do it before they fix it!