There are 3 abilities to watch out for reallyDuring the entire encounter, Maloriak will cast two abilities that need to be dealt with immediately. One is Arcane Storm, every time it is casted it needs to be interrupted with no excuses. The other is Remedy, it can be dispelled or purged off of Maloriak, but if a Mage spellsteals it the healers won't have to worry about healing the mage for the duration of it, saving mana.
Remedy
Release Aberrations(dedicated interrupter would be great here so you can control how many adds will come out)
Arcane Storm
There doesn't need to be 3 tanks only 2, 1 tank can handle all the adds.There needs to be three tanks for this fight to go smoothly at the moment, even on 10 man. One tank for Maloriak, and two
off-tanks for the adds, because the current ilvl 346 heroic geared tank cannot withstand the damage of 12 aberrations (adds). Maloriak
will cast 4 summons before the first green phase, one offtank will tank 6 of the aberrations and the other will tank the remaining 6. After
the first green miniphase, the extra offtank can DPS Maloriak for the rest of the fight while the other offtank takes the remaining 6 adds before
the second green miniphase. The offtank that takes the last 6 adds will also tank the 2 big abberations that get summoned at 20% HP. Especially
make sure in this phase that the big adds get tanked away from the boss because they will still give the boss the add buff. It will be difficult
because Maloriak will be kited around the room in phase 2.
If you do the fight correctly as of 1/8/2011 a tank will only handle 9 adds every green phase and two adds in phase2.
p2 starts at 25% not 20%
Currently in p2 of the Maloriak fight there is no bossmod timers that tells you when Magma Jets will happen therefore you have to watch for him to raise his hand with fire in it into the air. Your tank will quickly move in the 3-5 seconds it takes Maloriak to hit the ground to avoid the fire/getting knocked into the air.(Please correct me if I'm wrong here)Phase 2 happens at 20% HP, in this phase Maloriak will cast Magma Jets. This means he should be faced away from the raid at all times, then
after he casts it he should be moved so the tank doesn't take extra damage. Make sure Maloriak is always facing away from the raid though,
because if he happens to cast Magma Jets and the flames trail through the ranged DPS and healers, the raid will wipe. Maloriak will also
summon frost orbs that need to be avoided. Time Warp/Heroism should be used this phase.
---------- Post added 2011-01-09 at 04:45 AM ----------
Okay I know why i said only 3 adds(you are correct its 8-10 adds, my bad!) because with the nerf to Magmaw the OT will only get infested by 3 adds not all of them. Therefore in my group we always use a OT tanking the adds, not kiting at all.