Festergut ain't good-looking, that's true. In fact, if you'd make his voice just a little bit more annoying, he'd be like a skinnier version of Roseanne Barr.
Festergut is an orgy of farts and vomits. Blizzard really caters to its customer base: 5-year old boys in kindergarten with a poop fetish. I guess the rest of us just have to deal with it.
Stinky
Stinky is one mean doggy, and needs to be killed to access Festergut. He has the following abilities:- Mortal Wound - a stacking debuff on the tank that reduces healing by 10% per stack. Tanks need to taunt off each other when the stacks get too high. The debuff stacks FAST.
- Decimate - reduces the entire raid's healthpools to very little. A decimate combined with high stacks of mortal wound is BAD for the tank.
- Plague Stench - raid wide aoe that just needs to be healed through.
When the dog is dead, move on to Festergut.
Festergut
Festergut is a dps race with a very tight enrage timer. On 25-man you'll need about 7.5k dps per dpser, and in 10-man about 5.5k dps. Tank healers will also have a stressful job.Festergut will be tanked in the center of the room. Melee and a majority of the healers (especially the tank healers, since they should not be forced to move at all) should be standing on top of the boss. The rest of the raid spreads out around the boss. The people who are spread out need to be ready to collapse into groups when Festergut unleashes Gas Spores (more on that later). They cannot stand grouped up during the fight due to Vile Gas, which disables the target and deals damage to nearby allies. In addition to this, everybody in the raid needs to make sure to get three stacks of a shadow resistance buff that the Gas Spores spread.
Tanks need to switch tanking Festergut when stacks of Gastric Bloat get too high, and tanks will take lots of damage when Festergut has cast Inhale Blight three times.
Confused yet? Don't worry, it sounds worse than it is.
Gas Spores
Festergut farts Gas Spores on the raid (2 in 10-man, 3 in 25-man). After 12 seconds, the spore will explode and deal damage to everyone around the target. The thing is: YOU WANT PEOPLE TO GET HIT BY THIS. If you get hit by the damage from an exploding Gas Spore, you will get a shadow resistance buff, which you will need to survive later in the fight. Always make sure everybody gets hit by this.
Best way to handle this is to have two or three (10- or 25-man respectively) collapse points. One will be on the tank who is currently tanking the boss (since he will also need the resistance). The other(s) will be at range away from the melee group. During the fight, make sure that one spore explodes on the tank and melee, and the other(s) explode in the collapsing group(s).
Vile Gas
Festergut casts this on random targets. The target starts vomitting and deals damage to everybody around him. It lasts 6 seconds. During this time the target is disabled and also takes some damage (it can be broken by bubbling or using Every Man for Himself). Vile Gas is not cast on melee if there is at least 3 or 8 people (10- or 25-man respectively) standing at range.
This means that people standing at range must spread out during the fight, and only collapse into groups when Gas Spores are about to explode. It also means you cannot stack everybody on top of the boss.
Gastric Bloat
Festergut casts this on the current tank. It is a stacking debuff that increases damage done by 10% per stack. At 10 stacks, the target will explode and most likely wipe the raid. Tanks must switch at 9 stacks, they cannot switch earlier since the debuff lasts too long (it lasts 100 seconds, and each stack is applied about very 12 seconds).
Paladin tanks can bubble out of the debuff if they need to, but since it is a dps race, tanks most likely want to have the damage buff to help with killing the freak.
At 9 stacks, the other tank taunts, and the first tank turns into a dpser. That means turning off Righteous Fury, changing to Blood Presence, leaving Defensive Stance, or going kitty. The tank turned dps probably wants to get a Hand of Salvation, since threat might be a problem with a 90% damage increase.
Inhale Blight
Festergut inhales some of the gas in the room, to grow stronger. Everytime he does this, he starts doing 30% more damage. Inhale Blight stacks three times, which means that after the third Inhale Blight, Festergut deals 90% more damage than normally. At this point, it is wise for tanks and healers to use cooldowns to keep the tank up. After the third inhale, he vomits and goes back to normal strength.
Pungent Blight
When Festergut vomits, he deals a MASSIVE amount of shadow damage to the entire raid. This is why you need everybody to have 3 stacks of the shadow resistance debuff.
Gaseous Blight
The final thing to worry about is Gaseous Blight. It's a raid-wide damage done during the entire fight. Everytime Festergut inhales some of the blight, the damage is reduced. After vomitting, the damage is back to the starting damage.
This means that healers need to be aware of timers and abilities more than usual. When Festergut is hitting the tank with "normal" strength, the entire raid is taking higher damage from the gas. When Festergut is hitting the tank REAL hard, the entire raid is taking less damage from the gas. Make sure to have healers switching between tank and raid healing depending on the gas status.
Melee dps have the easiest job in this fight. They just stand behind the boss and nuke their skulls off. They might need to take a step forward when the spore is about to explode to make sure to get hit by it, but otherwise it's just pew-pew.
Ranged dps need to be aware of who got the spores and where they should collapse to when the spore explodes. This means moving, which a majority of ranged dps hate.
Healers will be very busy dealing with high tank damage as well as constant aoe damage to the entire raid.
Tanks need to ready with cooldowns at the third Inhale Blight, as well as be sure to make the switch at 9 stacks safe.