Kologarn
Kologarn is a boss in the new Ulduar and is situated in The Shattered Walkway. It is a fairly easy encounter when you get the tactics right.
Kologarn have a series of abilities which can kill you if not handled correct.
Attacks/Abilities
Overhead Smash
An attack that gives a debuff to his target which decreases armor by 20%. Can be stacked up to 100%
Petrifying Breath
4 second channel cast that causes 14063 to 15937 (18750 to 21250 on heroic) Nature damage per second
and applies Brittle Skin, a debuff that increases damage taken by 20% for 8 seconds. (Kologarn casts this spell when there is no targets in melee range and wipes the raid.
Focused Eyebeam
When it is chasing you (or you are near it), run away from the raid (i usually kite it out the doorway) untill he stops casting it.
It does 2775 to 3225 Nature damage (3700-4300 on heroic), if not kited away you will get killed.
He casts this under the encounter and usually targets a ranged. If there is no ranged he will cast on a melee.
Left Arm
543.9K HP
Shockwave
His Left Arm does this attack (can't remember how often) and dealing 8788 to 10212 Nature damage (11563 to 13437 on heroic) to the whole raid.
Right Arm
543.9K HP
Stone Grip
This attack picks a player up and dealing 3238 to 3762 (5300 to 5600 on heroic) damage per second to a player.
You are unable to cast anything while gripped, but can be healed through.
Stone grip has a chance of being interrupted for every 1000 (4500 on heroic) damage the hand takes (so at 100.000 (450.000 on heroic) damage, there is a 100% chance it will release its target)
Tactics (10man)
The raid setup I had when we downed Kologarn was:
Healers: 1 Druid, 1 Paladin and 1 Shaman.
Tanks: 1 DK (taking adds) 1 Paladin (MT),
DPS: 2 DKs, 1 Warlock, 1 Priest, 1 Elemental Shaman.
When you first encounter Kologarn, pop all your cooldowns (no heroism) and nuke the Right Arm as fast as possible. The Right Arm got 543.9K HP and needs to be killed as fast as possible.
The damage done to the right arm is done to Kologarn himself. When the Right Arm dies, a pack of earth elementals will spawn and needs to be tanked and AoEd down immediately.
When they are dead, attack Kologarn until the Right Arm respawns after 1 minute.
When the arm respawns, have a shaman pop heroism and nuke. Then rinse and repeat.
When the Right Arm grips a player, you need to assign 1 healer to heal the person through it.
You just leave the Left Arm up.
When you get targeted by the Eye Beam, what we did was kept a clear line in the middle so the one targeted with the Eye Beam could run out the door.
Tanking-wise we did as following: The MT (Paladin) were on Kologarn, when he reached 2 Debuffs,
the DK taunted him off him until the Paladins debuff was gone and taunted him back.
That way the paladin had Kologarn almost all the time and the OT could focus on the adds when they spawn. When the adds spawned the DK grabbed them with DaD and casters AoEd them down.
They do a small AoE when killed so no melee got near them.
I hope this was understandable and helped you a lot. Good Luck in Ulduar!
VictoRo
Sources:
World of Warcraft for the Encounter
WoWWiki for the description of the abilities