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[10] Chimaeron "soak tank strategy"

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[10] Chimaeron "soak tank strategy"

Postby Chunes » Tue Jan 04, 2011 12:04 pm

There is already a Chimaeron discussion active over here, but it was not specific to 10 or 25 man, nor did it have a summarized write up of the encounter.

General overview:

Chimaeron is a heal-centric encounter with a couple interesting twists. The fight will begin ideally by you walking past the sleeping hydra and talking to Finkle. His robot will buff the raid with a buff that prevents death from damage, provided that the killing blow is dealt to a player when they are at or above 10,000 hp. This means that so long as the buff is active (and there are times when it will not be active), your raid for the most part won't need to ever be much higher than 10k hp.

The exception to this rule will be your soak tank as he will be suffering repeatedly from one of chimaeron's harsher abilities, double attack. More on that in a moment.

Abilities:

Massacre - does "max" damage to all raid members. everyone needs to be at at least 10k hp to survive this. Once it's cast, raid healers quickly pick the raid up to 10k hp and any dedicated tank healer must quickly get the soak tank back up to a survivable level of HP for the next double attack.

Break - cast primarily on the "MT", this ability increases damage taken by the target and reduces healing done, stacks. Ideally you don't want your soak tank to ever get many of these since they are the only raid member who must consistently be healed to 80%+ of their hp.

Double Attack - just what it sounds like, chimaeron's next melee attack will really be two melee attacks in quick succession. Quite painful if not avoided/mitigated.

Caustic Slime - Ranged attack dealing a ton of damage to a single target and splitting damage with any target within 6 yards of the primary target. Reduces hit chance pretty significantly, you just have to deal with this.

Feud - Chimaeron ceases melee attacks and his heads start fighting one another. Can still cast caustic slime while feuding.

Mortality – Applied to raid in P2. Healing reduced by 99%, damage taken by Chimaeron increased by 10%.

Caustic slime is cast all through the first phase, but since you're buffed by finkles mixture, just be sure everyone's @ or above 10k and this is a non-issue. raiders need to be spread out at least 6 yards apart to avoid untimely "double slimes" since they do splash damage and can be cast in quick succession.

Fight "how to":

We decided to approach this fight with a soak tank strategy. Initially we tried having the tanks swap after X "breaks", however this led to healing inefficiency and sub-optimal beacon usage for our holydin. We elected to have our blood DK be the primary tank and we had a prot paladin glyphed and specced for optimal self healing soak double attacks.

The fight starts with our melee talking to finkle. As soon as the mixture debuff is applied, MT initiates combat while OT furiously stacks HoPo as fast as possible. The first double attack comes very quickly, often when I only had 2 HoPo generated. The trick to soaking double attacks is realizing how fast Chimaeron attacks. Fully debuffed, his swing timer is like 4 seconds or so. When he gains the double attack buff, I would wait a second or two, then taunt. As soon as I took damage, the MT would taunt back so as to avoid any applications of break to the soak tank.

Soaking double attacks is a bit of an art and will require some clever cooldown usage depending on circumstances. Two fully unmitigated attacks from a double attack will take a 179k HP @ 100% down to about 4-10%. Fortunately these attacks can be blocked or avoided entirely. As long as the tank is around 80% hp, the first attack will generally not drop you below 10%, thus rendering the second attack non-fatal no matter how hard it hits. The only trouble will be when Chimaeron gains the double attack buff, then casts massacre. This will mean that your soak tank will be reduced to 1hp, then very quickly will receive two powerful melee attacks. The first one will generally reduce you to 1hp if unavoided and the second one will be fatal. In these circumstances, use cooldowns to your advantage. We opted for a lay on hands for the first one of these circumstances, AD for the second and GanK + dodge trinket for a third should we be so unlucky. In general, we only encountered this once or twice per attempt. The good news is that if you can figure out how hard an unmitigated hit will land for, that value + 10k will be your soak tank’s minimum survivable HP. Finding this sweet spot will help your healers save mana as any healing over this point is effectively overhealing since massacre often will eat the tank’s extra HP anyway.

Periodically, and typically after a massacre, Chimaeron would start casting Feud. This is the signal for the entire raid to collapse into a pile within melee range of the boss. All raiders must be within a 6 yard diameter so as to properly soak the Caustic Slime casts that will be hitting the raid. This will be a very healing intensive 40 seconds as the bile-o-tron is often or always knocked offline for this feud cast. This means that your raid will be soaking the damage from the slime casts and your healers will have to keep everyone high enough in HP to survive the 3 subsequent slime casts while Feud is finishing. Raidwall/Radiance should be cast by any prot paladins after the first slime ideally so it's effect can persist through the third cast. All AoE heals should be fired once the group is stacked and prot paladins can toss WoG's out or even spam FoL or HL on raid members since their mana is easily regenerated through combat. Soak tanks will want to have 3 HoPo when feud finishes in case they need to quickly self heal to soak a double attack right after feud.

Once feud ends, the fight once again becomes a matter of “spread out, heal soak tank, keep everyone else above 10k”.

Phase 2 starts when Chimaeron hits about 21%. P2 can and will start regardless of what Chimaeron is doing. This means that if he’s in the middle of a feud cast and is bombing the raid with slimes, if you push him to 21% he will cease feuding, enrage and start eating your raid.

In phase 2, chimaeron becomes untauntable, the raid can no longer be healed and a very unforgiving burn phase begins. This phase is about killing chimaeron before he kills you. Upon entering P2, Chimchim will simply start going down the aggro list killing everyone in his way. Ideally, you want to have your #1 and #2 aggro spots be the tanks. #1 aggro will walk Chimaeron to a corner of the room and #2 will run to the opposite corner, doing any ranged attacks they can in the process. The tank tanking chimaeron in the start of this phase should blow all defensive cooldowns and just try to live as long as possible. Any DPS that can drop their threat via feign death or vanish should do so to buy them more DPS time buy putting them below healers in threat. Healers themselves, if they have any mana left, should DPS chimaeron now since they can no longer heal.

This phase is about pulling every trick in the book out to yo yo chimaeron, kite chimaeron, and cheat death in any way possible. You want to maximize travel time for Chimaeron when he kills a raid member, so whoever is next in line on the aggro table should always distance themselves from the boss prior to the #1 target gibbing. Our raid salvaged a .5% wipe by having our ele shaman ankh and shoot a few more nukes right at the end. This phase is all about creativity. Once your #2 tank is far enough away, try Bopping the MT so chimaeron runs to the OT. MT can click off the BoP and yoyo chimaeron back to himself. Same for your #2 tank. Rogues should vanish initially, but when they have threat they can sprint kite followed by evasion. Hunters should feign initially but can then use their mobility tricks to keep distance then mitigate as long as possible, deterrence/disengage etc. Mages should Invis only when they have aggro, otherwise blink/iceblock if frost etc. Healers are pretty much fucked for this phase. Just shoot your highest dps nuke until you die. Priests can provide wings/bubbles and life grips. Druids should shift/sprint when they get hate, pallies can bubble, shaman can ghost wolf. Warriors can intervene/leap away, then equip a shield and shield wall. DK’s should pop any and all cooldowns left, locks can use their teleporter if positioned properly. And so on. Every class has at least one trick they can employ to stretch this phase out. You’ll likely want to burn lust for this phase.

That’s roughly it. You will still have the bile-o-tron buff for P2, so you’ll get at least a few seconds of tank time provided you’re not eating a double hit right off the bat. This is a very chaotic fight, but once people learn their responsibilities, it’s just a matter of squeezing every last bit of DPS, healing and survivability out of your raiders.
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Re: [10] Chimaeron "soak tank strategy"

Postby PsiVen » Tue Jan 04, 2011 4:09 pm

It is actually possible to push Chimaeron under 20% during Feud in such a way that he continues to Feud with himself but is no longer throwing Caustic Slime, but you can't really plan on this as if you're split second off, you'll eat slimes in a Feud right before the enrage phase and be in bad shape going in.

The good news is that if you can figure out how hard an unmitigated hit will land for, that value + 10k will be your soak tank’s minimum survivable HP. Finding this sweet spot will help your healers save mana as any healing over this point is effectively overhealing since massacre often will eat the tank’s extra HP anyway.


Unfortunately this sweet spot is pretty close to your maximum HP; the hardest I've been hit was about 146k unblocked, so my safe spot is at least 156k or ~90% health which isn't a useful mark to watch for. Healers often need to just get the OT topped off ASAP, especially during a Massacre -> Double Attack where they probably can't get you high enough and the only way to survive is to cooldown or dodge.
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Re: [10] Chimaeron "soak tank strategy"

Postby Xfighter » Wed Jan 05, 2011 1:15 am

The general concept is still the same, but from our kill on 10-man tonight, it is no longer possible for the boss to double-attack right after a masacre. (IE: He gains double attack -> Casts masacre -> Loses double attack buff while/at the end of masacre, without it ever going off)
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Re: [10] Chimaeron "soak tank strategy"

Postby Chunes » Wed Jan 05, 2011 9:31 am

I was able to say to my primary healer "just get me to 70% hp, I can do the rest" and SoI/WoG would push me up to the survivable limit.

That is good news to hear that he's not immediately double attacking right after massacre's anymore. It caused us quite a bit of stress the other night.
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Re: [10] Chimaeron "soak tank strategy"

Postby PsiVen » Wed Jan 05, 2011 10:07 am

Xfighter wrote:The general concept is still the same, but from our kill on 10-man tonight, it is no longer possible for the boss to double-attack right after a masacre. (IE: He gains double attack -> Casts masacre -> Loses double attack buff while/at the end of masacre, without it ever going off)


I noticed that last night. It's a sizable nerf as that was the only situation which called for cooldowns on the OT.
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Re: [10] Chimaeron "soak tank strategy"

Postby Treck » Wed Jan 05, 2011 1:51 pm

What a joke this fight is on hardmode now after that change.
But dubbleattack "soaking" is definately the best way to do this fight.
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Re: [10] Chimaeron "soak tank strategy"

Postby Chunes » Wed Jan 05, 2011 4:33 pm

in a nutshell, what is the difference in HM?
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Re: [10] Chimaeron "soak tank strategy"

Postby Treck » Wed Jan 05, 2011 6:44 pm

He keeps hitting the tanks during Feud.
(without bil'o'tron aktive)
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Re: [10] Chimaeron "soak tank strategy"

Postby Chunes » Thu Jan 06, 2011 12:06 pm

Double attacks as well?

Sounds like pretty much a rape on the healers mana...
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Re: [10] Chimaeron "soak tank strategy"

Postby Chunes » Thu Jan 06, 2011 12:06 pm

Double attacks as well?

Sounds like pretty much a rape on the healers mana...
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Re: [10] Chimaeron "soak tank strategy"

Postby Treck » Thu Jan 06, 2011 12:35 pm

Chunes wrote:Double attacks as well?

Sounds like pretty much a rape on the healers mana...

And break.
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