Flu Shot Shortage (10 player)

Strategy Guide:

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• For this achievement, as you can see and read yourself, is to not allow anyone to have more than 2 stacks of Inoculated throughout the entirety of the fight. This has some RNG to it and isn't that hard of an achievement.
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Our group:

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• 2 Tanks - | Paladin | Warrior |
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• 3 Healers - | Shaman | Paladin | Druid |
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• 5 DPS - | Hunter | Ele Shaman | Boomkin | Rogue | SPriest |
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Boss Information:

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• This boss is pretty much a tank and spank, however there is very little movement involved.
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• Festergut will start the encounter by filling the room with a Gaseous Blight. At certain intervals (Time TBA) he will cast Inhale Blight and do an AoE raid damage. After this occurs, he will attack 30% faster and do 30% more damage per stack, up to 90%. To counter this you must stack Inoculated.
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• To become Inoculated, Gas Spores will appear over 2 random players' heads and everyone must run to them within 12 seconds to receive the AoE explosion from the spore.
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• Also, you will need 2 tanks for this encounter due to Gastric Bloat which will increase the tanks damage done by 10% per stack, however it will make the tank explode at 10 stacks. Have the OT taunt as soon as the first tank gets 9 stacks.
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• The last thing you need to look out for is Vile Gas. It will cause the target to throw up, and if within 8 yards of another player, will cause them to throw up too.
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Achievement Strategy:

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• Now for the achievement!
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• In order to get this achievement, you must have good communication and good healing throughout the entirety of the fight.
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• The way to do this is to have each of the first two people who get the spores be the only ones to get the debuff. However, the second time around, you need to have everyone EXCEPT the first two get inoculated.
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• So right now, you should have everyone at 1 stack. Good.
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• After everyone is at one stack, you need to have EVERYONE get inoculated on the 3rd spore, which will bring everyone to 2 stacks and 50% resistance.
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• Now in order to finish the boss off and get the achievement, you must make sure to pop Bloodlust and any damage reduction right before Pungent Blight in order to survive... Everyone will be taking massive amounts of damage.
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• If you survive Pungent Blight, good job, finish him off and grats on the achievement.
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Tips:

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• Act accordingly if someone get the spores more than once. If someone gets it 3 times however, bad RNG, wipe it and start over.
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• If you aren't killing him before the 2nd Pungent Blight, try 2 healing it to burn him faster.
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• Have good healers.
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I wish you the best of luck, and feel free to critique my post and ask any questions.

A link to our video on YouTube is here, so you can see how it's done. Please rate a subscribe to see our upcoming achievement videos!

~Wrex - Pseudonym - Executus: US

Edit: Grammar
Edit - 2: Group composition. Link to YouTube video.

After every 4th Inhale Blight, Festergut casts Pungent Blight, which deals roughly 45k shadow damage.

Normally in the fight, Gas Spores spawn, and you use them to spread the buff Inoculated until you have 75% shadow damage resistance (3 Stacks) to the Pungent Blight attack. This achievement, requires that you do not have 3 Stacks.

In order do that, you need to make sure everyone has only TWO (2) stacks of Inoculated, this cuts the damage of the Pungent Blight by 50% instead of 75%. Even though it's a 50% reduction, you will still take heavy damage, so it's recommended that you use a damage reducing cooldown right before he casts Pungent Blight:

Druids - Barkskin
Rogues - Feint (CONFIRMED THAT THIS WORKS)
Paladins - Bubble
Priests - Shield
Death Knights - Icebound Fortitude + Anti-magic Shell
Warriors - Switch to defensive stance + put on shield and shield wall.
Warlocks - Shadow Ward
Mage - Ice Block
Hunters and Shamans don't have any damage reducing cooldowns that I'm aware of, they'll need to be shielded with Power Word: Shield from a priest.

It's recommended that you kill Festergut before the 2nd Pungent Blight because most of your damage reducing cooldowns won't be back up again.

An obvious reference to the current shortage of swine flu vaccinations in the United States which are being given for the current "epidemic".