This is funny for 5 mins, it involves the invasion buff/curse you get at random while in org and stormwind.
The basics is once you have Give In To Darkness - Spell - World of Warcraft ready, create a LFG for pocket fel spreader (mention "fel spreader" or "dread" in your group name), your group will fill very fast and you'll have 20 or so players swarming around looking for the NPC, great trolling for when you pop your Give In To Darkness - Spell - World of Warcraft spell and kill them in a few hits. Mention in your group name the doomsayer location so you get them all at one point quickly. Mine normally goes "dread not dead VOS AH" I get to kill alot of joiners + normal realm peeps.