Mythic G'huun Uldir Raid Strategy Guide

By FatbossTV Updated: 2019/01/06

G'huunMythic Difficultyclick hereG'huun

Phase one consists of fighting Thousand Maws adds as G'huun attacks the raid from his protective lair. Groups of players must carry Power Matrix orbs to a Reorigination Drive to trigger a Reorigination Blast to begin phase two.

Phase two has the raid facing G'huun directly. The group should trigger a Reorigination Blast to remove a huge chunk of health from G'huun's large health pool and get him to 20% to start phase three.

Phase three is a race to the finish, as players need to defeat G'huun without the assistance of the Reorigination Blasts, before the raid is overwhelmed by the ever increasing raid damage.

G'huunLootBattle for Azeroth Item Level Guide

Cloth: Amice of Corrupting Horror, Cord of Septic Envelopment

Leather: Striders of the Putrescent Path, Tunic of the Sanguine Deity

Mail: Spaulders of Coagulated Viscera

Plate: Helm of the Defiled Laboratorium, Hematocyst Stompers

Vanquished Tendril of G'huun

Intellect Staff: Heptavium, Staff of Torturous Knowledge

Gun: Re-Origination Pulse Rifle

Agility Fist Weapon: Lancet of the Deft Hand

Shield: Barricade of Purifying Resolve

Mythic DifficultyG'huunPre-Raid Setup & Spreadsheet

Several groups need to be assigned before the boss should be engaged, ranging from Power Matrix (orb) running groups and spread raid position assignments.

Phases one and two are mostly difficult due to the mechanics at play, with phase three testing each players mechanical and output abilities.

Click here to view the Assignment Spreadsheet made by Fatboss

Composition Recommendations

Bringing four warlocks is highly advised. This is due to the gateways they provide making the orb running job far easier and more consistent.

If four warlocks isn't possible, we still recommend that you bring at least two, as they can provide 1 gateway for each upper platform.

Suggestions on how to deal with having less than four warlocks is covered in the Upper Platforms section of the guide.

Ideal locations regarding orb delivery setup.

To reset the boss on the pull, have a hunter auto attack the boss.

Whilst the projectile is in midair, have the hunter feign death before it hits the boss.

The boss will now reset for 25 seconds, giving you time to set up warlock gateways and monk statues/transcendences before the fight begins!

Melee DPS are not bad for this encounter when it comes to output. Instead they can cause issues for one another during the last phase when a Wave of Corruption and Malignant Growth overlap.

We recommend that you limit the amount of melee to four or five. That being said, it is possible to bring more melee DPS, but they will have to play very well during dangerous overlap points.

Classes that have the ability to access the upper platforms without having to go up the ramp is useful, as this increases their uptime on the arena floor significantly.

These "teleport classes" make great "catchers" for upstairs. As a result: having 10 of them is perfect - as there is 10 throwers and 10 catchers assigned for this encounter.

If your composition doesn't allow for this, that is not a major issue. You will simply need to have players run up the ramp and along the path to get to their catching positions. This encounter has been defeated with as few as 6 "teleport" classes.

Warlocks with Demonic Circle

Monks with Transcendence

Druids with Wild Charge (to a Monk Statue or a player)

Rogues with Shadowstep (to a player)

Upper Platforms and Orb RunningTendrils of CorruptionTendrils of Corruption

This will root any player who touches it, whilst dealing damage to them over 12 seconds.

Players will need to avoid this tendril by simply not running into it.

These Tendrils of Corruption will always path the same way, at the same time for each and every pull.

If a player is caught by a Tendrils of Corruption, they can use a "Blessing of Freedom" style spell to end the root early.

Power MatrixMatrix Surge

This surge of energy deals lethal damage to all players within 4 yards every 0.5 seconds.

This ability is largely present in the encounter to force players to hand in the orb within a reasonable time.

If the orbs are dealt with correctly, and no player is caught by the Tendrils of Corruption, this mechanic will not make any impact whatsoever.

Matrix Surge

Two Power Matrix orbs will spawn each time, one on each path.

The raid needs to send two sets of players to deal with each orb hand-in.

They need to communicate with each other to ensure that the orbs are handed in within a 3 second window of each other.

Even though two orbs are handed in, this will still only provide 35 energy to the Reorigination Drive.

The raid should be assigned into five teams, each with four players.

A total of 3 Reorigination Blasts will occur throughout the fight.
One in Phase 1 run by Groups 1,2,3

Two blasts in Phase 2 run by Groups 4,5,1 and Groups 2,3,4

Throwers should be a mixture of whoever is remaining.

Each group should have a single healer assigned to it, as to ensure that there will always be 4 healers on the arena floor.

An example of the orb delivery raid assignments.

Thrower picks it up as soon as the orb spawns and takes the gateway.

The catcher is already in position, either via teleport or by running up there earlier. They are reducing the size of nearby Undulating Masses to help with movement.

Thrower throws it to the catcher and then jumps down.

Catcher then takes the second gateway (or runs to the end with movement abilities if there isn't a gatewaye) and gets ready to dunk the orb.

Catcher talks to the other Catcher to ensure they are both ready to deliver. They then dunk the orb and the task is complete.

At some points players may want to delay handing in the orb to better align the blast with a Blood Feast.

During phase two, players may wish to remain on the upper platforms to dodge an incoming wave.

These particular points are noted at the corresponding section of the guide.

G'huun requires a large amount of communication to defeat, especially in phase two when it comes to soaking the Bursting Boils.

Some guilds have opted to use a system of macros and weakauras to allow communication between the orb delivery groups without filling up valuable VoIP space.

Weak Aura 1(Pastebin Link) shows an Icon that lets you know that you are the next group to run. Triggered by whisper message "youre next". This is case sensitive.

Weak Aura 2 (Pastebin LInk) shows an Icon that lets you know that the other Catcher is ready to deliver: Triggered by whisper message "orb ready". This is case sensitive.

This macro needs to be used when the Catcher is ready to deliver the orb.

This macro will whisper the other "Catcher" in their group the phrase "orb ready" - Triggering their weakaura icon and letting them know that the orb is ready to be placed in.

Once each Catcher has used the macro (and seen the icon appear on their screen via the message being sent back), they should immediately place the orb within the Reorigination Drive.

This same macro will also whisper the two players (who are assigned to run the orb next on their particular side) the phrase "youre next".

This is simply to alert those players that they will need to do an orb run soon - once again freeing up VoIP space.

/w Paul orb ready
/w Harry youre next
/w Tina youre next

/w John orb ready
/w Helga youre next
/w Wendy youre next

Bursting BoilPhase One

The adds spawn in very similar positions at very similar times and have no new abilities.

Spawn of G'huunExplosive CorruptionVirulent Corruption

If the Virulent Corruption orb contacts a player, they will gain Explosive Corruption whilst also immediately spawning three new Virulent Corruption orbs.

To prevent the Explosive Corruption from spreading like the plague, the group should spread 5-10 yards from one another when the debuffs are applied.

Players need to be constantly vigilant throughout the phase, as getting hit by a stray Virulent Corruption orb can suddenly cause a new breakout of the debuff.

Explosive Corruption

This is to ensure that areas of the room in which adds are due to spawn will not be coated in goo which will hinder player movement.

Thousand MawsSpawn of G'huun

This add will fixate on a random player via Dark Purpose, gaining movement speed over time until it reaches its target or dies.

Upon reaching their target they will despawn and apply Blood Host to them, a 20 second disease dot which spawns two new Spawn of G'huun adds upon removal or expiration.

The amount of Spawn of G'huun adds that spawn from a corpse varies depending on the add. Cyclopean Terrors spawn 2, Dark Young and Blightspreader Tendrils each spawn 4.

Example of raid movement during phase one.

Blood Host

The raid should move as a spread out unit in a counterclockwise path around the edge of the room to help funnel the adds together.

To help the Spawn of G'huun spawn in roughly the same areas, old Cyclopean Terrors should be killed before switching to newer ones.

Have a few members focus mainly on killing the Spawn of G'huuns, such as Hunters with Barrage and Boomkins.

Crowd control spells (such as knockbacks, displacements, slows and stuns) should be used when the group needs to stay within a section of the room for prolonged periods of time, such as the time between add set 2 and 3.

Cyclopean TerrorTorment

Note that these adds can be stunned and silenced, which can help lock them out.

The DPS should focus all of their damage into Cyclopean Terrors and Spawn of G'huuns, ignoring the Dark Young and Blightspreader Tendril for the most part.

The Blightspreader Tendril will still need to be tanked and interrupted by at least 2 (14 second) interrupts.

The Dark Young should be used by the raid as a way of giving Dark Bargain debuffs to the raid and any nearby adds. It should not be considered an add that needs to be defeated.

Transition: Reorigination Blast

There isn't much of a consensus of what time is the best to transition into phase two, however what nearly everyone agrees upon is that you should be consistent.

If you transition into phase two at the same time every time, the abilities are much more likely to occur in a similar order at a similar time.

Regardless of when you transition, the phase two strategy below will work.

We recommend that you place the last orbs into the drive at 1:26, starting the blast around 1:28.

Do note however, this is just what our guild did to kill it, a better time is likely to exist out there.

Just pick a time and stick to it for the most part.

Phase Two

Explosive Corruption is not present in phase two in any form.

The group will need to trigger two blasts, up from one on heroic.

A brand new ability has been added: Bursting Boil.

Bursting BoilBursting BoilG'huunBursting Boil

Each boil explodes after 8 seconds, dealing an initial burst of shadow damage and applying a 30 second shadow damage dot to the two players closest to the boil.

If a player is afflicted with two 30 second dots at any given time, they will become mind controlled until they die.

The raid must split up and ensure that two non-debuffed players stand closest to each Bursting Boil when it explodes, as to prevent anyone from gaining more than one stack of the dot.

You can easily have three boils spawn in separate corners of the encounter space, or all within 10 yards of each other.

Couple this with the orb runner groups being away from the encounter space when these spawn and this mechanic quickly becomes the most difficult aspect of the encounter during progress.

Bursting Boil

You can strictly assign six players to each boil set. These players will be responsible for identifying which boil they need to soak as well as ensuring they reach that boil in time.

We strongly recommend that you do not assign individual players to specific Bursting Boil. This is likely to add tens, if not hundreds, of extra pulls to your progression.

This is mainly due to the high chance of failure, in which one player failing to do their job can cause players to become mind controlled.

Simply go for a Bursting Boil soak if you don't have a Bursting Boil debuff.

Try to avoid soaking if you are just about to do an orb run, but if it needs to be soaked... soak it!

Bursting BoilUnclean Contagion

Players who soaked before heading upstairs should receive as many healing over time spells as possible before heading up, and should aim to use their own survival abilities to survive.

Players should try and soak the set of boils that spawn 20-30 seconds before they are due to go up, as to have more people available downstairs to soak whilst they are up.

Here is a chart of when it is "ideal" for those groups to soak and when it is not. Just remember, if it needs soaking: soak it. It is likely that you will have to deviate slightly from this chart each pull.

Fortunately, phase two has a very low overall damage requirement, and what you lose in output will be made up for by having far more consistent pulls due to a larger amount of the raid heading for each set of boils.

Assign the group evenly amongst these areas!

Bursting Boil

That being said, if there is no Bursting Boils to soak in this area, or if that boil is covered by other players and another section needs help, they need to be flexible and help out those sections.

Bursting BoilcommunicateBursting Boil

If a certain area needs help.

When a certain boil is covered.

Others to leave a boil if they want to soak it as they are due to go do an orb run soon.

Blood FeastBursting BoilBlood Feastmust

If you transition at 1:26, ideally this overlap will never occur on the second and fourth Blood Feast, when all players want to reset.

Although tanks should actively seek the Bursting Boils like the rest of the raid, they generally want to keep G'huun in the centre of the encounter space.

This will allow players to always have range on G'huun regardless of where they stand on the arena floor.

Tanks should taunt off of one another when G'huun reaches 4-6 stacks of Growing Corruption.

This is especially important when the tank has both the Gibbering Horror and G'huun at the same time.

They should ensure that they have enough personal and external defensive cooldowns to survive during this time.

Wave of CorruptionPutrid Blood

This is mainly done by simply being spread 5 yards apart from one another when the ability comes in, as to prevent any splash damage from occurring.

This can also be done by remaining upstairs briefly when dealing with the orbs, as whilst upstairs you will avoid the wave*.

Here is a chart of what group can avoid what wave easily throughout phase two.

Chart of which group will ideally avoid each Wave of Corruption.

A way of minimizing the chances that this will happen is by being on the upper platform at least 5 seconds before the wave is cast.

Blood FeastBlood Feast

All arena floor players should stack next to the boss as to ensure that the Blood Feast is accessible to all players who need to remove their Putrid Blood stacks.

Blood Feast two and four should be used to reset the entire raids Putrid Blood stacks, as you will trigger a Reorigination Blast at this point, killing the add regardless of size.

Blood Feast one and three should be used to reset the stacks of groups due to deliver orbs upstairs shortly afterwards.

Blood Feast

Blood Feast One: Groups 1 & 5

Blood Feast Two: Everybody

Blood Feast Three: Group 4

Blood Feast Four: Everybody

Gibbering HorrorBlood FeastBlighted GroundGibbering Horror

This Unstoppable Corruption effect will not occur if the Gibbering Horror is under the effect of a Reorigination Blast.

If the Reorigination Blasts are triggered just as the second and fourth Blood Feasts occur, the adds from Blood Feast one and three will not resurrect in time and will simply disappear.

The Blighted Ground left behind by add 1 and 3 should be placed against the wall to the north west or north east, as to keep the zone in low traffic areas.

Five Spawn of G'huun adds will spawn from the Gibbering Horror as it dies. DPS should quickly crowd control and kill these adds before they can reach any players and begin to spread.

It is important that the first and third Gibbering Horrors die before they can cast their Mind-Numbing Chatter for the third time, as this will likely cause the healers to fall behind.

Reorigination BlastReorigination Blast

This leaves the raid to deal the final 30% across the phase, largely by having a few DPS utilise the extra damage the boss takes during the first blast by using cooldowns there.

That being said, if damage is lacking on the Gibbering Horror, these cooldowns should be used on the add instead.

During the Reorigination Blasts, the raid should stack up next to the boss, but at least 10 yards away from the newly spawned Gibbering Horror, as it will still spawn the Spawn of G'huun when it is stunned.

The players who just handed in the orb may need to receive healing quickly to survive their journey back to the rest of the raid. A single healer should travel towards each player to ensure that they survive.

Transition 2Blood Feast

All players should attempt to reset their Putrid Blood stacks in this Blood Feast as to enter the last phase with as few stacks as possible.

Life Grips and movement abilities may want to be used here to ensure that as many people can reset as possible.

The DPS should not have to use cooldowns on this final blast to get the boss down to 20% health. Instead they should be saving these cooldowns for the beginning of phase three.

Before the final tick of the blast, the raid should all move over to one side of the room ready to bait the Collapse.

Collapse Phase

Collapse consists of three detonation areas. The first two detonation areas will be on the location of a randomly seelct player and the third will be placed directly in the middle of the room.

The raid should stack up to bait the first detonation. As it appears, the entire group should move 30-40 yards away from its epicentre to another set stack location.

This should be repeated for the second Collapse. Players should use movement abilities, including warlock gateways, to ensure that this distance is achieved by everyone.

After the second Collapse, the raid should remain stacked up to allow healers to top the raid ready for the third and final hit.

After this last hit, the raid should quickly spread around the room, ready for phase three.

Phase ThreeExplosive Corruption

Similarly to heroic, this player needs to move away from the raid to allow the debuff to expire in low traffic areas.

Wave of CorruptionGaze of G'huunMalignant Growth

This is most notable as they no longer occur in the Malignant Growths -> Gaze of G'huun -> Wave of Corruption rotation, instead they're timers will interweave throughout the phase in a set way.

There is no grand strategy when it comes to dealing with these mechanics, aside from just having each player deal with each ability as it occurs: spread on the wave, look away for the gaze, be in the safe zones during the growths.

That being said, having a spread raid will help in this task greatly.

Split the raid evenly amongst these locations.

When forming these groups, try and spread melee players between the groups as much as possible, whilst also assigning one healer to each group.

These groups will occasionally merge, especially when dealing with the Malignant Growths.

All players just need to be considerate with their positioning by leaving space for extra players to enter their safe zones and by returning back to their allocated area of the room after the mechanic has concluded.

Bursting Boil

Although you have far more eligible soakers during this phase, as no players are on the upper platforms, these can be difficult to soak.

This is mainly due to the time in which they spawn, as this can occur during a Malignant Growth spell, leaving the Boils directly in the hazardous areas.

Unfortunately, there is no grand strategy for this mechanic either.

Players need to simply communicate quickly if they need assistance, and all players must be willing to head over to boils that are not within their assigned area and help out.

Having the raid leader call out incoming mechanics before they happen can help players keep a grasp on what they need to do to survive the combination of mechanics.

Below is a chart detailing each Bursting Boil spawn and what is likely to occur during these times.

As long as everyone remains composed and plans their movement for each incoming mechanic before they occur, the raid should not struggle in this phase.

The boss should be defeated before the sixth Bursting Boils spawn: roughly 2 minutes into the phase.

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Mythic G'huun Uldir Raid Strategy Guide

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