Tactics for High King Maulgar

Boss and Add Abilities

High King Maulgar (warrior)
Melees plate for ~5-6k, 8-11k crushing.
Arcing Smash A powerful cleave that hits around the front of Maulgar for 8-12k on plate.
Whirlwind Momentarily spins round, and hits anyone around him for 7k on plate. It is advised that he is away from the raid and only the healers near him (see diagram below).

Melee can easily die if they attempt to melee High King Maulgar due to this Whirlwind. The safest time for them to attack him is just after he has used it, but it is still dangerous and it may be best to just attack him from range. Some boss mods can give a rough warning when a Whirlwind is approaching, allowing melee to back out.

Enrage At 50% health, High King Maulgar enrages (he turns red and loses his hammer) and gains two new abilities:
Fear (Enraged only) An area of effect fear, so the tank should be Fear Warded, and/or have Tremor Totems up. The fear doesn't have a large range and any ranged DPS or healers will be unaffected. It occurs every 40-50 seconds.
Charge (Enraged only) High King Maulgar charges a non-feared target. After the charge, the main tank will need to bring him right back into position. You may also choose to have an off tank for this stage to help bring him back to position, then have the main tank take aggro back shortly after.

Krosh Firehand (mage)
Blastwave 6-7k Fire Damage every 10-15s. Point Blank area effect, about 20 yards.
Fireball 8-9k Fire Damage constantly, 4 second cast. Bypasses normal fire resistance.
Fire Ward Shield Self buff, reduced fire damage taken. A mage should definitely use Spellsteal on this buff as it is effective against Krosh's Fireball spell.
Melees for 3k.

Olm the Summoner (warlock)
Summons a felhunter every minute or two. Banish or Enslave them or else they will harm your raid.
Deathcoil Single fear to the main tank on the Summoner and causes 2,000 damage and heals him for 4,000.
Dark Decay This is a 500 Damage per tick spell that can only be dispelled by his Felstalkers with a self cast spell. It is cast roughly every 4 seconds on his current aggro target. Have Shadow Protection up to reduce the damage from this spell.
Melees for 3k.

Blindeye the Seer (priest)
Single target heals, can be interrupted.
Prayer of Healing Area of Effect heal which heals the caster and all the other adds for 40% of their life (100,000 hp heal). Effectively unlimited range and a 4 second cast.
Melees for 3k.
Susceptible to Curse of Tongues, Mind-numbing, Wound Poison, Stun as long as his Shield is not up.
When he casts his shield (similar to Power Word: Shield), he starts a long cast Prayer of Healing, a 20 - 30 yard area of effect heal which will heal all of the mobs for about 40% of their HP. He will be immune to interrupts when his shield is up as well. DPS down the shield immediately so the rogues and warriors can interrupt the heal.

Kiggler the Crazed (shaman)
Sheeps very frequently.
Lightning Bolt is chain casted at a 20 yard range on the highest aggro for 800-1500 Nature Damage.
AoE Knockback 10 yard range and does 2.5k damage.
Melees for 3k.

Kill Order
Priest, Warlock, Shaman, Mage, High King Maulgar

Strategy.
Raid can position themselves in a starting position for their respective Adds by hugging the left wall and moving to the far end. Only Maulgar Tank, MT Healers, Mage Tank, Mage Tank Healers need to be left at the entrance side. The above image is a genralised Image of positioning.
The mage tanking Krosh should place himself completely to the right and move straight forward just before the clip in the wall (small steam vent there). When high king gets pulled, hit Krosh with any instants possible and spellsteal his shield immediately after. Krosh will run to the mage and begin casting a fireball. Position him in the corner (run there after your instant spell/spellsteal) he will run right next to mage and begin casting. Mage tank will need to blink away from him, as he will now stay in this position.

Priest.
Priest Will be picked up by their respective DPS Tank and moved to back left Wall. Most important thing is to interrupt its heals, keeping it stunned with intterupt rotations, Tank is healed with Hots
as the priest tank doesn't need many heals. keep it stunned and interupt heals if they manage to get out of stun, DPS Them Down. Ranged DPS must stay off Rocks by the walls as this can create evade bugs.

Warlock
Several warlocks can manage the tanking on this fight by enslaving the summoned Pet and turning them on the warlock. pet comes with an equipped taunt. When one pet gets deathcoiled/Feared then other pet can Taunt. When there is a shortage of Warlocks in the raid then tanks will need to be assigned to manage taunts and pick up loose pets.
All DPS will join in to kill Warlock once priest is down.

Shaman
The shaman is Tanked by 2 hunters or a balance druid. Hunters need to keep up the Nature Buff to ease the damage Taken. Hunters need to try and pick up the shaman add where he stands. He will periodically sheep the tanking hunter and the other hunter will need to take the aggro. Any Nature resist gear the shaman tanks have will aid in lessening the damage. All DPS Tanks and spare healers move over to assist once Warlock is dead. Tanks from warlock/priest ensure you do not taunt/steal aggro from the hunters during this transition.

Mage,
The Mage will be tanked by a high HP Guild mage with the use of SpellSteal. Krosh will only recast the spellshield when he isn't casting a 4second cast greater Fireball. This means the tanking mages spell sheild (spell stolen) can fade before he is able to steal another shield. Greater fireballs will hit for 8500-9500 damage. This can be lessened by Casting fireward Just before the greater fireball hits the tanking mage as Fire Ward will absorb 1220 Damage (rank 6). GCD can be a problem if not managed correctly.
Tip: Better to stop casting before the Spell Shield has around 5 seconds left, cast Fire Ward at 3 seconds left. Then you don't have GCD to worry about when you need to cast Spellsteal. If you can time the Spellsteal 1–2 seconds after his shield is up, that will help reduce the chance that you don't have a Spell Shield to steal in between. Do not cast Fire Ward early because it will be used up even when you have the Spell Shield on you. Save the Fire Ward to help absorb the damage when your Spell Shield is about to fade to reduce the damage from the full Greater Fireball.
Only RANGED DPS should join this Fight after all other adds are dead. Melee Should move straight to High King. Several Healers can stay to assist keep mage tank alive. Other move out of combat and regen before assisting with Maulgar Tank healers.

On Approaching High King NO melee should join the attack until he has performed a whirlwind. Mana Users try to regen Mana before moving into the high King Fight.

High King Maulgar
All Ranged must spreadout, Extra Tanks must position themselves spread out in the raid, Raid markers can be assigned to tanks to judge positioning. Melee should not run in to fight Maulgar till whirlwind has been done. Warlocks should keep up Curse of Weakness on Maulgar
once Whirlwind finishes, all melee DPS can run in and DPS for 25-30 Seconds, Then run out again, this should prevent melee getting hit by the next whirlwind. Continue this till Phase2.

Phase2 Notes.
At around 30% (some saw him charge at 45%) High King Maulgar starts his random charges into the raid (Enrage) and if you're unlucky the whirlwind wipes the raid. Tanks have to give everything to and pick up and bring High King Maulgar back to his position. He isn't untankable, but he is unstable! At this time just DPS him down, it shouldn't take too long. Nobody has to die in this phase, but some unlucky charge while whirlwinding may happen.