Quick Facts

Series

1.	Three Lights in the Darkness (25 player)
2.	Two Lights in the Darkness (25 player)
3.	One Light in the Darkness (25 player)
4.	Alone in the Darkness (25 player)

Screenshots

Videos

Comments

Comment by odok

Prior to the fight you can speak to each of the four Watchers to activate them for the encounter. Each one gives a buff to the entire raid.

Freya -- Resilience of Nature Increases all damage done by 10% and healing received from all sources by 20%.
Mimiron -- Speed of Invention Increases all damage done by 10% and movement speed by 20%.
Thorim -- Fury of the Storm Increases all damage done by 10% and total health by 20%.
Hodir -- Fortitude of Frost Increases damage done by 10% and reduces damage taken from all sources by 20%.

In addition, each of the Watchers also adds a unique ability to the fight.

Freya -- Sanity Well Standing in the well brings you back to your senses, regenerating 20% Sanity every 2 sec. Damage done is reduced by 50% while you remain in the well. They will spawn around the room and this is the only way to regain Sanity during the fight.
Mimiron -- Will cast Destabilization Matrix on the tentacles that spawn during the second phase of the encounter. This allows you to safely ignore a majority of these adds during the fight.
Thorim -- Will cast Titanic Storm during Phase 3 of the encounter. This is the only way to kill the adds that spawn during Phase 3. Otherwise they will simply remain at 0% health.
Hodir -- Hodir's Protective Gaze Allows Hodir to save a friendly target who sustains fatal damage by encasing them in a nearly impenetrable block of ice for up to until cancelled. Hodir must rest after performing this action.

For this achievement, you may only activate one of the Watchers for the fight. Choose wisely.

Also note that the true Hard Mode for Yogg-Saron is to do this without the assistance of any Watchers.

Comment by Evilhealbot

World First to Irae AoD on Mug'Thol EU on the 29th of April 2009.

Comment by 236163

While Mimiron and Hodir merely offer a significant bonus, without Thorim, there is no way to kill the Immortal Guardians that spawn during phase 3, which means they must be tanked til Yogg dies.

Then again, not having Freya's Sanity Wells is a huge problem on its own, seeing as it's the only way for Sanity to recover in the fight.

Do note that this fight was made while considering the possibility of having no keepers at all, so it seems like this specific last choice seems like a personal guild preference.

Comment by wasniahC

One important thing to note is that you will not get targetted with malady of the mind or psychosis if you are below 30%. Every other method of losing sanity is avoidable - mind links, facing wrong direction, etc.

Comment by 639151

If you decided to doing this achievement, you should speak to Thorim.
Without his help, Immortal Guardians can not be killed and considering that
some of your raid members might be dead or have less than 10 Sanity in P3,
it becomes almost impossible to kill Yogg-Saron before tanker dies.

Comment by gamerunknown

Completed by Irae AoD on the 28th of April 2009 as world first.

Edit: according to wowprogress... Evilhealbot's post was downranked when I posted this.

Comment by Seramilux

Is it possible to remove keepers after choosing them?

Comment by Felfaadaern

Will "Alone in the Darkness" also get you this achievement? Or do you need to use one of the watchers?

Comment by Rozeblade

BUT HOW DO YOU KILL HIM? I dont need advice on who to take, I dont care what buffs they give. I just need to know how to fight each phase! I've tried this boss twice.
Part 1: Kill the squid men next to the chick to knock her HP down, this pisses her off and lets her transform into the Valerie chick with the fish under her.
Part 2: Kill the vines as you run around avoiding !@#$, the fish and the chick are immune so all you can really do is kill the vines.
Part 3: The fish gets pissed and opens ports to one of 3 areas. While there DO NOT look at the skulls. (Not sure why but that's what I was told.)
SIDE NOTE:If you get the one with the Arthus you're SoL both times I've gotten into his area I get stuck there, though I can still hear what's being said in the main room with the fish.
Part 4: No clue, if you can get back out (did that once) you go back to killing the vines around the fish.

Any actual help is highly welcome.

Comment by Himlaklar

For anyone who wonder, this achievement also is completed if you use no help at all (Alone in the Darkness). Just wait til Sara becomes hostile, kill the vines and take the portal as soon as it appear. Inside the portal (stormwind, icecrown or dragon soul), kill yellow npcs - this causes the way out to be open. Do NOT click the portal out just yet, instead look up and realize you can now pewpew his brain for a moment which will port you out and make him available to kill.

Comment by Sylveeon

Don't make the mistake I did.
DO NOT TALK TO THE KEEPERS

I was under the assumption I needed to talk to the keepers to unlock Yogg's area. Wrong.
Hopefully that helps.

Comment by tribalchief

I died at least 5 times. I was about to tap out for the night before I gave it one last go. I completely said screw it. I dropped two tentacles' before the portal opened. As soon as I saw it open, I went in and got a crap load of buffs, I was able to kill the adds fast as hell this time around. Once I killed the adds, it was easy for me to drop the boss.

Links

One Light in the Darkness (25 player)

Defeat Yogg-Saron with the assistance of one or fewer Keepers in 25-player mode.

One Light in the Darkness (25 player)

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