Just what I remember from this fight - it was a fun one.

[quote:3b9e40e498]
      I.	Phase 1, 100% to 41% health
         A.	Hunters, priests, locks – drain his mana.  Keep a mana sting on Val at all times, have a lock spam drain mana to keep it from building up.  (He heals &amp; in phase 2 uses mana for chain lightning effect)[/quote:3b9e40e498]

This is huge.  The viper sting is key too since it keeps ticking while his mana tries to regen.  We tried with just a warlock draining him but the warlock was spending too much mana to drain a few ticks of Vals mana and Val could still get a spell off.

[quote:3b9e40e498]B.	Have all pets out and concentrated on Val (helps aggro adds).  One suggestion is to keep pets away from the boss and put them on aggressive to aggro the adds.[/quote:3b9e40e498]

The aggro issues might be good if the adds go after a pet but be careful here.  He has a chain drain life that will jump to people in range of him so if the pets can be hit by this it's very bad.  Here's why:  The first person to get hit by it is fine, it's maybe a few hundred damage and he gets healed for that much, but with each jump (like chain lightning) it gets stronger, it may even double.  So if too many people are close (pets included) you're looking at 1k for the next jump, 2k if it hops to a 3rd and so on.  When we were too close we had people getting hit for 4k, and he's healed for as much and the fight is over at that point.  So if you use pets, find a way to keep them away from him.

         
        [quote:3b9e40e498] D.	Spectral Assasins will appear 2 @ a time during phase 1
            1.	Spectrals will freeze players &amp; channel.  After 10 seconds the player will die.  Everyone should turn on their mob healthbar (V by default) to better see these mobs.
2.	Everyone but healers &amp; mt should stop what they’re doing &amp; kill these as soon as they appear.
3.	Ideas:  arcane explosion (mage), multishot (hunter), instant hits (rogue, warr)
4.	When a player dies s/he becomes an additional Spectral
5.	One suggestion was using warstomp (tauren) &amp; shock (shaman) on the adds to stop them (??  Not sure if this would work after the draining spell starts…)[/quote:3b9e40e498]

This is where the meat of the fight is.  Shocking doesn't stop the channeling, neither does kicking it seemed, but they die FAST if everyone besides the MT and main healer(s) turn on the adds immediately.  Shocks and whatnot are great for dropping them quickly but mages may want to just use frostbolt or whatever else then Arc. expl to finish them for mana efficiency.  Don't think a few rogues can handle it themselves because when the spectrals will eventually go after the rogues sometime and freeze them while they channel and kill them.

[quote:3b9e40e498]II.	Phase 2, 40% to 16% health
A.	Val changes weapons, Spectrals stop appearing
B.	All melee but mt run to the casters &amp; switch to ranged if possible.  This mitigates an exponential chain lightning effect (17k dmg)
C.	All out DPS, it helps if mt disarms.
III.	Phase 3, 15% to 0% health
A.	Val starts running around and attacking everyone – use shadow protection, he spams shadow bolts.
B.	Big time DPS
C.	Melee should run back in, prot warrior should use shield wall.  Maybe a tremor totem?[/quote:3b9e40e498]

All of this sounds good.  Shaman dropping grounding totems is also something that I think was working.  Something was being absorbed by my grounding totems.  Hopefully you have some random priest who will stand alone against Val when all the others are dead and he's at 1%.  That guy in our group will forever be my hero.  Whatever his name was.

Much of this may not be right, but I hope it helps somehow.

I'm in to do this, it's a fun fight.  Let me know if I'm on.