This is I think my second time posting in years, sorry for the lurkage, but this is worth it!
SS of my work: WoW Forums -> Bloodelf explodes Org Inn.
Description:
All Gruul + Progressed raiders should know the fight Doom Lord Kazzak. One of his primary abilities is Mark of Kazzak, which drains 5% of the caster's mana each second for 10 seconds. If the person's mana is fully drained, that person explodes for 5k shadow dmg in I believe a 10 yard radius. Sounds annoying to someone trying to kill kazzak, but there's a nifty thing about this debuff: It goes through a Paladin's Divine Shield.
Step 1: Set your hearth to desired location where you can get to a group of ppl within 3-5 seconds max(swiftness potion helps a lot). I.E.: Org inn, SW inn, etc etc.
Step 2: Get ported to Outlands and head over to Doom Lord Kazzak. If he's up, fly around the ledge to his right and you should see a fel cannon on a little cliff area with a decent size landing. Drop down here and dismount.
Step 3: If you approach the edge of this area closest to kazzak, he should aggro you. Count to 4-5 seconds, bubble, hearth(sorry, this only works for paladins). If timed correctly, between 5-8 seconds left on your hearth cast he should put the Mark of Kazzak on you. Yes this can be casted through bubble, and yes this will stay on you when you hearth. I suggest unloading addons to make load times faster if necessary.
Step 4: Swiftness potion to desired location(or stay in the inn) and LoH(preferablly someone else so you dont get mana back). You'll instantly explode for 5k shadow dmg to everyone within a radius of you. Enjoy the many WTF's and how the hell did you do that's that you'll receieve from the dead and injured around you.