The first boss, Vigilant Kaathar, wasnt too bad.  We screwed up on part of the mechanic because it had a graphical bug and we werent able to utilize a shield properly to negate group aoe.  Youll see us talking about that in the vid.  He will throw lightning out, ala Lei Shen style but it will stay their through the whole fight, just stay out of it.  He will drop orbs on players that will explode over time.  Main thing is just stay out of lightning, stay kind of together but spread.  Then when he throws the shield (hopefully the graphical error will be fixed) stand behind it to negate the AoE.  But dont get behind it too quick because he might drop the orbs on you if you stack too soon and youll blow up while behind the shield instead.

Second boss Soulbinder Nyami went by fairly quick.  She will just constanly cast, and will sprint to groups of bodies around the room, which will rez some spirits that you just need to cleave down.  One of which does a cool charge ability that spreads a few AoE lines on either side of him.  Only other thing of note is she will pop up a bubble that everyone needs to stand in and she will cast a spiraling AoE that hurts a fair amount.

Third Boss Azzakel was a bit rougher.  You dps him for a while, interrpt his cast.  He will fly up in the air (time based) and become immune while he summons 3 types of adds, a Felguard, and 2 types of imps.  One type will just stand and free cast which will deal a fair amount of dmg, the other will be on fire and running around like a chicken with its head cut off.  If those ones hit you, you will get disoriented and run around for 5 secs unable to do anything unless you "every man" out of it, etc.  Those adds should be your priority.  We tried to ignore the adds and just burn him, but it didnt work out and we killed the imps and cleaved down the felguards with the boss and that worked best for us.  It was the hardest fight in the instance IMO.

Last boss Teron'gor was an interesting fight.  You start out flying to 3 platforms, each platform has a warlock on it, each with a spec of the warlock tree (demo, afflic, dest).  After you kill them you will go down to the main platform.  He will randomly choose one of the warlock specs and youll have to deal with those abilities during the fight.  Once his health gets low he will retreat and the fight ends.