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Comment by 150104

Poor Ooze :(

Comment by skysec

DPS him until the oozes come out, then stop dps, clear out any remaining adds, and after a while the oozes start to form into Iron Sludges, which you need to kill, once you kill enough, you can finish him off to get your achievement

Comment by 249544

Sermihage's suggestion worked well for us, we DPSed down to 40% and then more or less ignored the boss, DPS killed all but 2 sludges at a time, we let the 2 form into an iron sludge and killed it as soon as it spawned. The Iron Sludges have 13k hp and die easily. Just remember to keep track of how many you have killed.

Comment by 197608

He starts spawning oozes at 50% and will continue to spawn them until 20%. So dps him down to 25% or so, kill your five oozes, then finish him off.

Once he's below 20% he only spawns the friendly earthen, so make sure you let him spawn enough oozes before knocking him the rest of the way down.

Comment by Darsh

Just got this one complete, thought I'd offer a strategy. This is a slow strategy, but works well if you get overwhelmed by the damage the Iron Sludges can do.

He starts spawning sludges at 50%. For 100-50%, just burn him as normal, while killing his adds.

When he hits ~40%, break off - don't bring him too low. If you have any way to lower his damage (Curse of Weakness, Thunder Clap, Demo Shout), keep it up on him.

Stick one DPS on each side. On one side, kill all the sludges (they have only a few thousand HP). On the other side, allow 2 sludges to move to the boss, and kill the rest. The 2 sludges will get to the middle, dance around each other for about 5 seconds, then merge into an Iron Slime. Quickly kill it, then allow 2 more sludges to get to the middle from the same side.

Repeat till you've killed 5, then burn all remaining little sludges and burn the boss.

Comment by 286422

If anyone is having any trouble with this, with a decently coordinated group:

1) DPS down to 30%
2) Once at least 5 small oozes are out, DPS the boss down past 25%
3) Wait for the oozes to get large, kill your 5 large oozes
4) Kill the boss

The boss only stops spawning oozes once you get him past 25%, the oozes will continue to grow however. This will aid in helping you not get overwhelmed by extra oozes.

Comment by 301334

If you have a warlock in your group, do the following:

Get boss to 50% and stop dps
Let the big ooze form and let the warlock cast seed of corruption on the boss ( sometimes 2 needed). This will damage big ooze and kill small ones too, so you dont have alot of big oozes running around.
Then rinse and repeat until you kill 5 oozes.

It worked very nicelly for us.

Comment by 130569

just to make it clear, you need to kill at least 5 Iron Sludges during the encounter. if you happen to kill more by accident - dont wipe, you'll get your achivement ;)

Comment by 307759

After trying a few strategies, we came up with one that trivializes this event.

Our group build up was
Priest - Healer
DK - Tank
DK - DPS
Mage
Hunter

Started fight, and we pulled him to the steps next to the door. (reason for this is so the healer and the tank dosent get hit by a few unlucky poision bolts)

DPS stood where the passageway where loken spawns begins to bottle neck twards the door.
The DK dps just helped with adds, at 40% we let 5 oozes from each side enter the center of the room. (the reason why we didn't "stagger" them is because it seems the Iron Sludges take a while to spawn.

I as the holy priest stood halfway between the tank, and the dps. As the iron oozes spawned, we quickly burned them down with the three dps. After the 5 were down, the DPS dk continued to kill the oozes as they came closer to the center, and the hunter/mage burned down the boss, easy day.

Hope this helps!

Comment by DiamondDraenei

It is helpful to tank the boss not in the center, but in the corridor where you enter from. This gives your group the entire platform to work with, negating the worry of Lightning Ring.

Comment by 313008

Just done this today with grp: Me as holy priest, druid tank, arcane mage & 2 rogues.
Had one wipe first, but on our second attempt downed boss with the 5 iron sludges.

We didn't prepare any special tactic, except let the oozes emerge to the sludges & burn them down fast. Was quite mana intensive and defo no easy task to heal, but we managed to do it with nobody killed.

Comment by 325149

The iron sludges seems to cast thier poison nova everywhere, regardless where youre standing, you get the hit. Despite the spell description says the limit is 30 yards, we always get hit by nova altough we were spreaded as a dps group, a healer and a tank far from one another. So its not essential to reposition group when oozes start to come. however with a poison totem, we managed to get credit without any caution. Just track the HP percentage of boss, know where you will stop and as soon as 5th sludge dies, pop all CDs and burn Boss down as quickly as possible. Thats how we did it easily.. gl

Comment by 314432

tank the boss where bran stands before the fight
my group stopped dps when he reached 50% and just let the oozes come down, there is a spell animation that occurs before they fuze as soon as you see it AOE IMMEDIATLY, both kinds of oozes have barely any health and go down in seconds. rinse and repeat

Comment by 382617

Just finished this today with a very disorganized group:

Ulduar geared Warrior
Ulduar geared Resto Shaman
Ulduar geared Mage
Naxx25+ geared Boomkin (me)
Poorly geared DK

We just DPSed the boss until the oozes started coming out, then just sat there and waited for the oozes to merge, then killed them as they merged. By the time we got 5 dead, things were out of control... Everybody was taking massive damage and there was oozes everywhere, but I popped out and used Tranquility to get some stress off the shaman, and we bursted boss down in time with only the DK dying.

It was VERY hectic, so I recommend that you control how many oozes you let loose at a time, we outgeared this and barely pulled it off.

Comment by noob0len

Hi, okay so the way i did this was that we got boss to what 30% hp and then no dps..We waited as the little oozes came into the center and camped there for a few seconds and then turned into the Iron Sludges you need to kill for the achieve..So remember that there will be alot of little oozes...Just keep like 2 alive and let them turn into the Iron Sludges and you will be fine.Hope this helps!Happy hunting:P

Comment by SCViper

Just did this 5 minutes ago with a TOC/Uld geared tank and druid, and some very lame dps. I have 2 quick pieces of advice:
1) never let more than 2-3 small oozes live
2) get some decent non-retard DPS, or else it will be very hard.

Comment by QFred

I did it today with a group consisting of:

1 Tankadin heroics and badge gear
1 Shadow Priest
1 Holy Priest with no so good gear and experience
1 Blood DK
1 Rogue

The tac we used to defeat the boss was for me (the awesome shadow priest) go Holy (off spec) and heal both the rogue and the DK each on a stair. I kept SWP on the boss and the dpsers focused on getting the adds down. Eventually we got the boss to 50% and the adds started to spawn. We didn't worry about how many of the sludges spawned, but once we had 5 dead, the tank and both DPSers took him down in a few seconds.

This strategy is good is your healer is not experient, very under-geared and/or a total retarted. (Ours was just unexperienced) and one of your party members is someone who has healing offspec. Though I recomend the above mentioned for more balanced groups.

Comment by 422834

OK. I tried the ways they tell u how to do this. I was tanking as a bear, had a hunter, shadow priest, ret pally, and a shamn healer. The ways stated did not work too well. After a few wipes we formulated a new plan. Tank the boss where bran whats his name stands, dps him down to 50%. Quit all dps on boss. Let the oozes form, (might have to take boss to them for this to work, not sure did it to be safe). than take boss back to bran. All dps focus on taking down the oozes. With this plan we one shotted it no problem.

Comment by Allakhazam

Wrote a guide with consolidated tips and information on it as well as a video I found:

http://www.^&*!@#$%^&*!@#$%^&*!.com/dungeons-and-raids/lich-king-heroic/abuse-the-ooze/

Hope this helps

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Abuse the Ooze

Defeat Sjonnir the Ironshaper in the Halls of Stone on Heroic Difficulty and kill 5 Iron Sludges during the encounter.

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Glory of the Hero and Dungeon Achievements Halls of Stone Dungeon Boss Guide Halls of Stone Overview WotLKC

Abuse the Ooze

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