Yogg-Saron

3 phase fight with lots of cool stuff.

Throughout the encounter, players have a buff stack called "Sanity", which starts at 100.

* Sanity — Indicates overall level of Sanity. If Sanity reaches zero, the player becomes Insane. The sanity score persists through death (except when releasing).
Insane — 60 second debuff. Kills its target upon removal or expiration. Yogg-Saron takes control of the target's mind. Increases damage by 100% and health by 300%.

Players with 0 sanity must be killed quickly, and cannot be rezzed.

---

Phase One: Killing Sara

Sara cannot be attacked directly, and casts the following spells randomly on the raid and the Guardians:

* Sara's Fervor — Increases a friendly target's damage by 20%, but also increases damage taken by the target by 100%. Lasts 15 sec.
* Sara's Blessing — Heals a friendly target for 27000 to 33000, but also causes 60000 Shadow damage over 20 sec.
* Sara's Anger — Inflicts 12500 Shadow damage every 3 sec, but increases physical damage done by 12000. Lasts 12 sec.

Sara is stationary in the center of the room. The only way to damage her is the AoE damage from dying Guardians (see below). Green-yellow clouds move in a circular pattern through the room (always the same path at the same speed), but they are faster than it seems. When players (not pets or totems) touch a cloud, a Guardian of Yogg-Saron spawns. This must be avoided at all cost. The golden rule of this phase is to immediately stop everything if a cloud comes close, and move away to a safe spot. 5 seconds DPS / Healing lost doesn't matter at all, while an extra Guardian means a substantial increase in difficulty. As with many such rules, it sounds simple, but actually doing it requires high situational awareness from everybody, and leads to many failures.

---

Guardians
Guardians also spawn automatically at an increasing rate, starting at about one per 40 seconds, increasing up to one per 10 seconds. Since 8 Guardians have to be killed close to Sara in order to end the phase, it may be practical to cause one (or even two) voluntary extra spawns early in the phase - this reduces the number of Guardians left over at the start of phase 2. It is ok to have 2 Guardians up after the transition, 3 is still possible, 4 is a likely wipe.
Guardians of Yogg-Saron

Abilities:

* 950,000/220,000 HP.
* Shadow Nova — When a Guardian dies, it inflicts 25,000 shadow damage to all targets (including Sara and other Guardians) within 15 yards.
* Dark Volley — Inflicts 8500 to 11000 shadow damage to the entire raid. Reduces healing effects by 25%. Lasts 10 seconds. Interruptible.

Shadow Nova is the only way to damage Sara. Eight Guardians have to be killed close to her to start the next phase.

Dark Volley should be interrupted.

---

Ferrying


The safest method is to have one tank in the center of the room, a small ranged group (3-4 damage dealers plus one healer) within range of that tank and the majority of the raid at the outer edge, near the door, where it's safe from clouds. The offtanks bring Guardians to the raid where they are nuked down to about 25% (don't use DOTs). Then, the offtanks bring the Guardians to the tank near Sara, who taunts them. When the Guardian is close enough to Sara, the small ranged group kills it. It's possible to have the tanks trade places (and not taunt the Guardians). Taunt can be resisted, but is reduces the distance which the tanks have to move through the clouds.

This method is fairly safe, because only the tanks and the dedicated ranged group must dodge clouds. Unfortunately, DPS output is low. For this reason, it's hardly ever used in 10 player or hard modes, but it's normally used by 25 player groups learning the encounter.
Standard

The normally used method is to put tanks and melee on top of Sara (tanking and killing Guardians there), while ranged and healers move around the outside. This method increases effective DPS on the Guardians, but requires everyone in the raid to dodge clouds.
Easymode

In 10 man, it's possible to concentrate the whole raid on top of Sara. This means that everybody takes the damage when Guardians die, but normally healers should be able to handle it. Even though hunter DPS is reduced, all other aspects of the fight are trivialized (no clouds ever reach the exact center of the room, overall DPS is maximized). In 25 player mode this tactic is not feasible, as the clouds cover the whole room and there's no safe spot at the center.

---

Phase Two: Tentacles and the Brain

Quickly kill any remaining Guardians from phase 1.

There are two areas, outside and inside the Mind's Eye (Yogg-Saron's brain). During this phase, Yogg-Saron regularly opens portals to the Mind's Eye. After four portal phases, the spawn rate of the tentacles outside increases substantially. Phase two ends when the Brain of Yogg-Saron's health inside the Mind's Eye hits 30%. Throughout the phase, all raid members not inside should concentrate close together while killing Crusher Tentacles.
Outside: Tentacles

Abilities: Crusher Tentacle:

* 2 million/ 400,000 hit points
* Diminish Power — Weakens enemy units in a large area around the caster (50,000 yards), reducing the damage they do by 20%. Channeled. Stacks up to 4 times. Being hit by a melee ability disrupts this cast.
* Focused Anger — Enrages the caster when hit by attacks and spells, increasing attack speed and damage dealt. Stacks up to 99 times. Damage dealt is increased by 3% and attack speed is increased by 3%. Lasts 1 second. Refreshes upon being hit by melee.

Corruptor Tentacle:

* 600,000/100,000 hit points
* Curse of Doom — A debuff which inflicts 20,000 Shadow damage after 12 sec. Curse, dispellable.
* Apathy — 20 second debuff which reduces attack, casting and movement speed by 60%. Magic, dispellable.
* Black Plague — 24 second debuff which periodically stuns for 2 seconds. Disease, dispellable.
* Draining Poison — 18 second debuff which causes 3500 Nature damage and drains 1400 Mana every 3 sec. Poison, dispellable.

Constrictor Tentacles:

* 100,000/8,000 hit points
* Squeeze — Grabs a nearby enemy and inflicts 7500 Physical damage every second.

The tentacles should all be killed as quickly as possible.

* Ranged focus on the Crusher Tentacles
* Melee focus on the Corruptor Tentacles
* Constrictor Tentacles can be ignored until they grab someone, then they can be nuked quickly by a few damage dealers

Everybody capable of doing so must dispel the debuffs from the Corruptor Tentacles. They do not deal melee damage, and should be interrupted and stunned while being killed by melee.

Melee damage dealers should generally stay away from Crushers. One melee damage dealer should carefully hit the Crushers regularly, to disrupt their damage reduction cast (but not too frequently, so they don't gain the damage increase buff).

Constrictor Tentacles randomly pick up players from the raid. Victims may continue to cast, and are freed by killing the tentacle. They do not cancel or prevent Druid ShapeShifting anymore. ( 3.2.2 )

Sara hovers above Yogg-Saron's main body and castis various spells:

* Psychosis — 5000 Shadow damage and reduce Sanity by 12.
* Brain Link — Link two random players with a beam. Targets take 3000 Shadow damage and lose 2 Sanity per second while they are more than 20 yards apart.
* Malady of the Mind — 4 second debuff. Target takes 5000 Shadow damage, loses 3 Sanity and gets feared. The debuff jumps to another target within 10 yards upon expiration.
* Death Ray — Slowly moving green beams which deal 20k Nature damage every 0 sec. Malady of the Mind renders players immune to this effect.

She spams Psychosis without pause on random raid members unless she casts something else. The other three abilities each have a 30 second cooldown, and are used randomly when available.

Brain Linked players get a linking beam between them which is red when they are too far apart, and yellow when they are safe. Entering a portal ends Brain Link.

---

Inside: The Mind's Eye

Abilities: Laughing Skull:

* Lunatic Gaze — Looking into the laughing skull inflicts 1750 Shadow damage and reduces Sanity by 2% every 1 sec.

Influence Tentacle:

* 40,000 hit points.
* Grim Reprisal — All attacks against Influence Tentacles cause 60% of the damage taken to the attacker as well.

Brain of Yogg-Saron

* 6.85/1.3 million HP.
* Induce Madness — Drives all nearby targets insane, reducing Sanity to 0. 60 second cast time.

After the portals are open, Yogg-Saron's brain starts a 60 seconds cast of Induce Madness, which turns everybody in the Mind's Eye insane upon completion.

After passing through the portals, players enter one of three possible illusions. Each of them is a circular room with a door to the brain room right at the spot where players enter. The door is blocked, in order to open it, the Influence Tentacles in the first room need all to be killed. Additionally, laughing skulls float around. Characters looking at one of the skulls are affected by Lunatic Gaze (a purple beam) and lose sanity. To avoid this, players should look towards the outside wall of the room, and strafe. Use the camera controls to look around; don't physically turn your character.

Influence tentacles can be disguised as neutral mobs (e.g. dragons or human guards), they always stand along the outer wall around the room. All attackable mobs in the room are tentacles. Damage dealers should take one quick tour around the room (along the wall), and hit each Influence tentacle once or twice. After moving a full circle, all tentacles should be dead, and players are back at the door.

Killing all influence tentacles has several positive effects: Inside the door to the brain room opens. Outside all tentacles are stunned, Sara stops casting and no additional tentacles spawn until the Induce Madness cast is finished. It's essential to kill the influence tentacles very quickly.

After entering the brain room, players should look for the portal back outside near the rear wall. It's a good idea to stand next to that portal before nuking the brain. When about 5 seconds are left on the Induce Madness cast timer, quickly use it.

---

Phase Three: The Head of the Beast

Abilities:

* Yogg-Saron starts this phase at 30% of its original HP (= 16.5/3.3 million).
* Lunatic Gaze — Looking into the maw of madness unhinges your mind, inflicting 5700 to 6300 Shadow damage and reducing Sanity by 4% every 1 sec. for as long as you are facing the caster.
* Empowering Shadows — Empowers friendly units within 20 yds. of the target, causing them to regenerate 750,000/225,000 Health over 20 sec.
* Shadowy Barrier — Protects the caster from all attacks and spells.
* Extinguish All Life — Wipes the raid, cast 15 minutes after the start of phase 1

VERY indepth! but very good guide! someone has to much time on their hands!

Sankaa wrote:

VERY indepth! but very good guide! someone has to much time on their hands!

Most of it is copied from wowiki, im editing the stuff that isnt necesasary when its raid 10min break and at night:P