I completed this using 4 pieces of frost resist + flask and aura. Total FrR was 535, and the breaths only hit for about 25% of my health which was around 35k. I got 3 breaths early on and waited to about 60% to get the 4th. I had roughly 2.5 minutes left on the buff when she died.

I'll second the notion with tanking being too risky, with healers having to move in p3 the chance of getting fucked over is pretty high. I'll be doing it as DPS in frost res gear for sure next week.

I got a chance to try Frost Infusion multiple times tonight since our guild really enjoyed screwing up the ice blocks in phase 3.
As dps in frost resist gear it's fairly trivial to survive the breaths, although non hero classes might want some external cooldown help.

Breath timing went something like this:
-First ground phase: wait
-First air phase: wait
-Second ground phase: 2 breaths IBF the first, AMS the second
-Second air phase: have someone hot you in case you get blocked with the 2 stack dot
-Third ground phase: 2 breaths, AMS the first, IBF the second

At this point if your dps is good enough the boss should be going in phase 3, but even if you get a third air phase you should have enough time to finish the quest.
Note: It's possible to get 3 breaths in a single ground phase, but this means you will go into the air phase with a 3 stack dot.

I was planning on just doing Blood Infusion as the offtank/soaker, that way I'm already Beaconed with the MT. Does anyone see any problem with doing it this way other than my DPS will be terrible and it might push the enrage timer?

thanks!

I did the quest today. AMS after a breath, never got a block and ensured line of sight at Sindragosa's death.
I did wear three pieces of frost resistance gear and it helped a lot, I did not have any trouble. I even forgot about my special anti-magic talent spec, frost presence and some buffs.
The Frost Infusion quest is not really harder than the other two, you just can run into some bad luck.
Get two stacks in the 2nd and 3rd flight phase, that will ensure a long lasting infusion buff.

It was no problem as an Unholy DK to take 4 breaths in normal dps gear and no extra help from healers. AMS's cooldown is 1 minute, and the fight is 10 with a 6 minute "Infused" buff applied on the 4th breath. Just go frost presence with Bone Shield up and absorb a breath each time AMS is up, using AMS. You can stack IBF with it to completely trivialize the damage, but even without I stayed over 50% hp for every breath. I got the 4th breath just before Phase 3 with less than 6 minutes remaining on the enrage timer.

Blood DK's should be able to do the same without using any special gear, just using Vampiric Blood with AMS each breath.

Hit the mob once with Shadow's Edge equipped to apply the Shadow's Fate debuff, then you can weapon swap to whatever tanking weapons you use.

EDIT: You're right, frmorrison, I misunderstood his question. As far as Putricide, yeah you need to have Shadow's Edge equipped for the Shadow Infusion spell to be usable. Then you can switch to tanking weapons in p3. I'm not sure about Blood Queen and Sindragosa. The wording of Thirst Quenched and Frost-Imbued Blade respectively implies the axe should be equipped but that needs confirmation.

I didn't need to hit the Professor with Edge, I just needed to have Edge equipped while in the Abom.

I thought the debuff put a pretty sizable DoT on you, so having Frost Resist (Icebane set) will help reduce the DoT's damage.

I used the belt and boots from the Icebane Frost Resistance set, and as an Unholy DK, I can say that doing this quest was completely trivial.

I just followed the advices given earlier in this very thread, switching to Frost Presence and hitting AMS for each breath I'd have to take.

I actually even scared myself a little after going in front of Sindragosa and noticing like 2 seconds before the breath that my AMS wasn't back up. I panicked and didn't even use IBF and still, the breath only took my life down to about 19k (I might have been lucky though).

This quest was the one I was most scared of, after reading you could fail it to bad luck (being tombed as she died), but if you don't run into that kind of stuff, it's really easy, you are not going to be a "burden" to your raid like you might have been on BQL.

Reading this from mostly DKs so I thought I'd give some info on how I did it as an arms warrior.

Special items used for this:
1.) Icebane belt (all 24 stam gems)
2.) Icebane boots (all 24 stam gems)
3.) Lesser Flask of resistance
4.) Magic Resistance Potion (Don't bother with these, they don't stack with the frost resistance aura so I made a bunch of these and found out the hard way).
My total frost resistance came to be: 352

Extra Healing Used:
1.) Earth Shield - found this to be particularly helpful since we had 2 resto shamans in the raid. Keeps me topped off and gives an extra heal after the frost breath. The earth shield was switched to the 2nd tank after I took my 4th frost breath.

Method:
I took 2 frost breaths on the 2nd ground phase and then 2 frost breaths on the third ground phase. Nothing special except for defensive stance (this is pretty much a must as frost breaths can hit for around 28k damage even with defensive stance).

With 352 frost resistance, you will resist at least 30% of the frost breath (see Resistance Mechanics in WotLK for how resistances work). That means worse case scenario with defensive stance up you will be hit for a maximum of 43000*0.7*0.9 = 27090 frost damage.

There was a pretty good rhythm to the frost breaths (ie a pattern). Here's a pseudo timeline for how I did it:
1.) Sindragosa Lands. You have about 10 seconds to get behind the tank to eat the first frost breath (should be plenty of time to get in position)
2.) Frost Breath is cast.
3.) Run back with rest of melee to get topped off by some aoe heals and dps for about 15 seconds.
4.) Run to the back of the tank and get ready for the 2nd frost breath (the time between the first frost breath and the 2nd frost breath is about 23 seconds. This is very consistent)
5.) She casts her magnetic pull/blistering cold on raid. I was slowed most the time so I used bladestorm to break the slowing effect to get away. (Alternative could be to intervene your raid warlock who most likely has a demonic port conviently set up). Just use the macro:
/cast Defensive Stance
/cast [target=<Warlock Name>] Intervene
6.) Charge back in and dps for the rest of the ground phase.

Other comments:
The stacking damage debuff is pretty negligible and you don't even have to worry about it. After you get 4 breaths, the debuff will be gone and you get a buff (ie check your buffs and not debuffs for this) called "Frost-Imbued Blade" that lasts for 6 minutes.

Does hand of freedom work on the slow effect produced by the breath?

Yes. It doesn't remove the debuff but you run at full speed for the duration of HoF.

It's not needed to use external CD's or wear resist gear. I used full DPS gear and simply went into Frost Presence and you can IBF one and AMS another and then you can get two more doing the same thing. Just make sure healers know to heal you a bit more and also maybe a shield since the 2nd breath likes to be near the time when she pulls everyone.

The best way I found to do it was DPS until the first air phase and then when she lands take the first two breaths (she'll do three) then go back to DPS'ing. On the next land just get one breath and then get your fourth the landing after that. By the time you get to the final phase at 35% the attacking speed/movement speed debuff should be off you and you'll have enough time on your infusion buff that syncs up with her berserk timer. Basically, if you get breaths as fast as you can you won't complete the quest since you only get 5 minutes (or was it 6?) before the buff expires unless your guild has extremely rowdy DPS. We got her to 6% during one attempt I got buffs too quickly and my buff expired over a minute and change before her berserk (which is what we died to). I was pretty glad we wiped

It's definitely the easiest of the three quests as long as you manage your debuffs correctly.

Did Frost Infusion last night. Well to be clear I got Shadow's Edge infused but we didn't kill her. Not from any lack of DPS on my part.

Wore frost resist boots and belt. Drank flask of lesser resistance, had MotW and frost resistance aura. I also glyphed Hand of Salvation for the 20% damage reduction.

During the first ground phase I used Divine Protection first breath, then Hand of Salvation on the second. Use hand of freedom to run out faster during her ice explosion. Rinse and repeat on the second/third ground phase depending on how fast your guild can DPS her.

Anybody else seen this happen? Gushing Wound fades (as intended) on the final bite but he doesn't get Thirst Quenched. No quest credit at the end. No deaths. No Divine Shield. Bug? Or are we missing something?

21:51:40.675] Waldir Gushing Wound Waldir Absorb (2133)
[21:51:41.654] Waldir Gushing Wound Waldir Absorb (2370)
[21:51:42.661] Waldir Gushing Wound Waldir 1721 (A: 649)
[21:51:43.674] Waldir Gushing Wound Waldir 2369
[21:51:43.972] Waldir's Gushing Wound fades
[21:51:43.972] Waldir casts Vampiric Bite on Kokomala
[21:51:44.215] Waldir Vampiric Bite Kokomala 8310

World of Logs - Real Time Raid Analysis

When I did this quest WoL logs did not show the Thirst Quenched buff. It was a little bit confusing for me, but nevertheless I could finish the quest.

My guild also had this quest fail for a similar unknown glitch last night.
World of Logs - Real Time Raid Analysis

Log browser query set: [{"spellNames": ["Vampiric Bite"], "eventTypes": [6], "actorNames": ["Mistaclean"]}, {"spellNames": ["Vampiric Bite"], "eventTypes": [1], "actorNames": ["Mistaclean"]}, {"spellNames": ["Gushing Wound"], "eventTypes": [4]}]

[08:33:19.114] Mistaclean afflicted by Gushing Wound from Mistaclean

[08:34:38.395] Ritterbait casts Vampiric Bite on Mistaclean
[08:34:38.721] Ritterbait Vampiric Bite Mistaclean 8597

[08:35:44.209] Mistaclean casts Vampiric Bite on Snotlegz
[08:35:44.514] Mistaclean Vampiric Bite Snotlegz 528 (A: 7874)

[08:36:44.905] Mistaclean afflicted by Gushing Wound (2) from Mistaclean
[08:36:44.905] Mistaclean casts Vampiric Bite on Mathmagician
[08:36:45.159] Mistaclean Vampiric Bite Mathmagician 7216 (A: 1581)

[08:37:45.897] Mistaclean afflicted by Gushing Wound (3) from Mistaclean
[08:37:45.897] Mistaclean casts Vampiric Bite on Mozgalom
[08:37:46.124] Mistaclean Vampiric Bite Mozgalom 7331

[08:38:38.759] Mistaclean's Gushing Wound fades

You'll notice that for some reason the Gushing Wound doesn't increment on Mistaclean's the first bite (08:35:44.209) so it fails to register all 3 successful bites.

Update: We petitioned it and were given quest completion this morning, so odds are there is a bug that Blizzard is aware of which causes this to happen.

Could anyone here who has completed the Frost Infusion quest provide a log of the fight? Like world of logs, etc.

I did it today, playing it totally safe (3100 dps) with full frost resist gear, some pvp to get max resist/hp.

http://www.worldoflogs.com/reports/r...?s=2452&e=2972

Was no where near dying from breaths at any point.

Just stood in front of Sindragosa (out of cleave range) eating 2 breaths in first ground phase and again in second ground phase.

What options does a DK have to avoid getting blistering colded after a magnetic pull? I'm guessing the stacks of slow will prevent you from getting clear in time? Are cooldowns enough? PVP trinket perhaps?

World of Logs - Real Time Raid Analysis

I pretty much played it safe like the guy above me.

I stacked frost infusion 3 times and then waited until the transition into phase 3 to do the final stack. Then I stood behind tombs and did dps on them. It was pretty easy.