The Iron Juggernaut is the 6th encounter in the Siege of Orgrimmar raid, and 2nd encounter in the Gates of Retribution LFR

For a detailed view of the abilities and loot table across LFR/Flex/10/25 please CLICK HERE

General Strategy/Overview

This encounter is a 2-phase alternating fight.  Each phase is time based, with Phase 1 lasting 2 minutes, and Phase 2 lasting 1 minute.  Again, it alternates back and forth until the encouter is over or you hit enrage.

Overall this fight is probably one of the simpler fights, if not the simplest fight, in the entire raid.  But that does not make it the easiest, there are some mechanics that become very problematic and deal high raid dmg.

Phase 1 - Assault Mode

During this phase, Iron Juggernaut is mobile and needs to be tanked.  He has several abilities as follows.

1. Borer Drill - Drills its arm into the ground, causing the earth to crack and shatter, dealing ~60k phys dmg to players in its effect.  This is noted by earthquake style lines that will follow/chase players, can be out-run, etc.
2. Laser Burn - His tail cannon will focus on random players dealing ~135k fire dmg to the player.  Also applies a DoT that deals ~75k fire dmg every 2 secs.  Lasts 15 sec.
3. Mortar Cannon - His top cannon will launch an explosive at a random ranged target.  This will be noted by a large red targetting circle on the ground (similar to Mimiron).  When this lands, will deal ~200k fire dmg to anyone within the 8-yard circle. Cant be moved out of and completely avoidable.
4. Crawler Mines - Possibly the mose damage ability in this phase.  He will release several Crawler Mines that will move in the direction of random players, and bury themselves partially in the ground.  Once they are buried, they begin a detonation sequence that, if allowed to complete, will deal ~240k physical dmg to all players.  To counter-act this, while they are buried, players may click on them and absorb and explosion for ~100k physical dmg and get knocked up in the air.  Recommended that the current "off-tank" and any players with strong phys dmg reduction spells "stomp" on them to detonate them to prevent raid dmg.
5. Flame Vents - Frontal cone fire dmg spell that deals ~240k fire dmg.  Applies Ignite Armor debuff, causing 10% increase in fire dmg taken and applis a dot for ~32k fire dmg/sec. Stacks! Unknown duration.

Phase 2 - Siege Mode

During this phase he will bore into the ground and remain stationary for 1- minute and will no longer focus a single target.  During this phase he will continue to release Crawler Mines at a very increased rate.  His new abilities are as follows.

1. Seismic Activity - Drills into the earth causing an earthquake, dealing ~32k nature dmg every 1 sec to all players.  During this, he will occasionally cast Shock Pulse.
   1. Shock Pulse - creates a wave of energy that knocks players back SIGNIFICANTLY.  Players should ideally have their back to a wall/object to prevent range issues with healers.
2. Demolisher Cannons - Turrents fire high in the sky over random players dealing ~120k fire dmg to players within 6 yards of the blast area.
3. Explosive Tar - Spews tar puddles in all directions.  Standing in tar deals ~16k nature dmg/sec and reduces movement speed by 30%.  Tar puddles can be ignited by Cutter Laser, dealing ~160k fire dmg to ALL players.
4. Cutter Laser - Tail cannon now focuses random players and the beam will chase the player, dealing ~140k fire dmg to anyone it comes into contact with.  Reminder if this touches a Tar puddle, it will explode dealing ~160k fire dmg to the whole raid.  Must kite the beam around puddles as not to ignite the tar.

So.. it essentially goes.  Phase 1 - Tank facing away from the raid, and trade-taunt when appropriate.  Avoid targetting circles in first phase, and out-run the Borer Drill lines.  Current OT and players with def CDs click on the buried Crawler Mines to prevent high raid dmg.  Phase 2 - avoid running through Tar pools and dragging the Cutter Laser through the pools.  Try to avoid the blast areas of the Demolisher Cannon and do your best to have your backs against a wall/object for Seismic Activity/Shock Pulse.

Again, not an overly complicated fight, but can get crazy with dmg output and the large knockbacks in the area.

Norushen is the 3rd encounter in the Siege of Orgrimmar raid, and 3rd encounter in the Vale of Eternal Sorrows LFR.

For a detailed view of his abilities and loot table across LFR/Flex/10/25 please CLICK HERE

GENERAL STRATEGY/OVERVIEW

During this fight, you will not attack Norushen directly, rather, he is a friendly NPC and when you start the encounter, he will see you have corruption within you and seal you in a Quarantine Zone.  He will pull some of that corruption from each player and form an Amalgam of Corruption.  Essentially it just looks like a large Sha.  This is what you must defeat to end the encounter.

During this encounter, players will have a Corruption Bar on their screens, at the start, players will start out with 75 stacks (out of 100) of Corruption.  The more "Corrupt" a player is, the DPS will deal less damage, Healers will heal less, and Tanks will receive more damage.  The overall goal of the fight is to completely Purify yourself of your corruption to be able to deal more dmg, heal more and take less damage.  In order to become Purified, each player must go through an individual challenge.

NOTE:  The reduced damage/healing/dmg received does not apply to the adds in the encounter, ONLY the Amalgam.

This encounter has a strict 7-minute enrage timer, if the Amalgam is not defeated by then, Norushen will cast Quarantine Measures, killing everyone in the room.

The Amalgams abilities are as follows.

1. Unleashed Anger - slashes at his current target, deals ~320k phys damage
2. Self Doubt - Tank debuff, increases the damage Unleashed Anger deals by 50% per stack, requires tank swapping.
3. Blind Hatred - creates a line of corruption that will spin around the room in a 180-degree semi-circle.  This can be ran/jumped through but will deal EXTREMELY HIGH dmg.  Overall it will likely one shot you like Durumu's beam did.  It doesnt move that fast and can be easily avoided.
4. Icy Fear - Deals 60k frost AoE dmg to the raid every 3 sec.  The damage increases as he loses health
5. Frayed - When Amalgam reaches 50% health, and for every 10% health after, he will spawn an "Unleashed Manifestation of Corrption" add. (more below)
6. Fusion - every "Expelled Corruption" he receives from smaller adds will increase the damage he deals by 8% for 15 seconds.  Stacks. (more below).

REMOVING CORRUPTION / ADDS

 At the start of the fight, on the left and right side of the room, there will be two spinning orbs called "Purifying Light".  When a player clicks on these, they will be transported to a phased room that will contain adds, and a test that will vary based on your role in the fight.  You must complete this test to be cleared of your Corruption.

• Tanks - You will be zoned into a Test of Confidence and have to face a "Titanic Corruption" and must survive for 1 minute.  If you survive for 1 minute, you will be instantly ported out and cleansed of your corruption.  The Titanic Corruption has some rather nasty abilities to deal with.
  • Titanic Smash - deals 400k shadow dmg in a frontal cone.  Can be avoided.
  • Corruption - each successful melee swing gives a debuff stack of Corruption, dealing 8k dmg every sec per stack.
  • Hurl Corruption - fires a ball of corrption at the tank, deals ~225-250k shadow dmg, mitigatable, possibly interruptable.
  • Burst of Corruption - AoE that deals ~150k shadow dmg to all enemies, mitigatable.
  • Piercing Corruption - deals 320k phys dmg to target, cannot be absorbed/mitigated, but can be avoided completely.
• Healers - You will be zoned into a Test of Reliance, where you must defeat a Greater Corruption.  You will be aided by several NPCs who will already be fighting the boss.  You will have to keep the NPCs alive to allow them to kill the Corruption, once it is dead, you will be ported out and cleansed of your corruption.  Some guilds found it easier to just use DPS spells to help kill the Corruption faster as compared to healing the NPCs.  May depend on your comfort level/class.  The Corruption has a few abilities, primarily AoE, that affects all NPCs and yourself, but the primary ability you should worry about is
  • Lingering Corruption - This deals 320k Shadow damage to the player/NPC if not cleansed within 10 seconds.
• DPS - You will be zoned into a Test of Serenity, you will be pitted against 5 mobs total (4 Essence of Corruption and 1 Manifestation of Corruption).  To zone out of this encounter you must defeat these mobs and collected the Gold Orbs they drop.  These gold orbs reduce your corruption stacks and once you remove all yout stacks, you will be ported out of the Test.  Even if there is a mob remaining.  The mobs abilities are as follows.
  • Manifestation of Corruption - repeatedly casts Tear Reality - is a conal shadow damage ability that can be avoided/ranged.
  • Essence of Corruption - Casts a ball of corrupted energy in a straight line, moves fairly quick, but can be avoided.  Deals 80k shadow dmg if it strikes you.

On to the adds.  Initially you will fight adds in your "Tests", BUT, once a DPS kills his/her adds in their "Test", that add will RESPAWN in the primary phase as an "Unleashed" form of themselves. And have some abilities to deal with.  Remember, for each add a DPS kills, it will respawn and the rest of the raid must deal with it.  Do NOT send 2 dps at once or you will get overwhelmed with adds.

1. Unleashed Manifestation - must be tanked, does melee dmg and the following. These are also the adds that the Amalgam will spawn at 50/40/30/20/10% health.
   1. Burst of Anger - AoE that deals 40k shadow dmg to all players
   2. Residual Corruption - When defeated, will leave a void zone on the ground that will deal ~70k shadow damage to ALL players unless it is touched/absorbed by a player.
      1. Absorbing this corruption will give back the player 25 stacks of corruption.  NOTE: if this mob dies on top of a group of players, all players standing in the corruption will receive the stacks.  Kill away from the group and have a designated person absorb the corruption.
2. Unleased Essence - stays stationary on the outter edge of the room. should be focused quickly.
   1. Expel Corruption - Shoots balls of corrupted energy at the Amalgam.  This will deal ~80k shadow dmg to the first person it hits.  If it does not hit anyone and reaches the Amalgam, it will increase its damage dealt by 8% for 15 secs (See the FUSION ability above).  This stacks.  Supposedly can be interrupted, and must be intecepted before it reaches the Amalgam.

The goals of the fight are to send 1 dps/1 healer, or 1 dps/1 tank into their tests simultaneously.  With a 5 dps/3 heal/2 tank setup, this should balance out perfectly (for 10-man).  And to try to maintain as low of a corruption stack as possible to defeat the encounter, and defeat the smaller adds ASAP to prevent the Amalgam from getting high dmg stacks and wiping the raid.

Ideally, the best way to probably counter the extra 25 stacks of Corruption from the Unleashed Manifestations early on in the fight, is to have the DPS focus the larger Manifestations first in their Test, then once it is dead and comes to the normal phase, the rest of the raid kills it immediately and have ONE person absorb it, getting their stacks from the base 75->100 and then have that player go complete their Test, there-by removing 100 stacks of Corruption instead of just their base 75.

The fight gets very hectic at the end for healers, so its best for them to not have any extra stacks of corruption at the end so they can get as much healing output as possible from the extra damage Amalgam has received from either "Expel Corruption" or from the stacking Frost damage "Icy Fear".

Immerseus is the first encounter in the Siege of Orgrimmar raid instance, and First encounter in the Vale of Eternal Sorrows LFR.

For a detailed view of his abilities and loot table across LFR/Flex/10/25 please CLICK HERE

General Strategy/Overview

Immerseus begins the fight with 100 Corruption, which is noted as a power/energy/rage style bar.  The objective of the encounter is to cleanse him of his corruption all the way down to 0.  Each time that Immerseus is reduced to 0 health, he will split into a mixture of dark Sha Puddles and watery Contaminated Puddles.  The puddles will begin moving back to the center of the room.  The DPS must destroy the Sha Puddles, and healers must heal the Contaminated Puddles to be able to purify them before they reach the center.  Following each "Split", Immerseus will reform with reduced health and Corruption based on how well the raid performed during this period.  This cycle will rinse and repeat throughout the fight until he is cleansed.

Phase 1 - Water Elemental

Primarily, tanks need to tank him so he does not directly face any raid member.  His "Corrosive Blast" is a conal ability that deals high damage and gives a stacking debuff (lasting 45 secs) that increases shadow damage taken by 10% per stack.  Requires trade tanking.

He will often cast "Sha Bolt", dealing low-moderate shadow damage to all raid members and leaves a small dark pool on the ground, move out of it to prevent extra damage, i.e. stay out of "fire". Only move as far as you have to, cause the pools to overlap to give yourself and the raid more freedom to move for his next ability.

His next ability is "Swirl" this will spawn several lighter blue pools and move along the floor fairly quickly, ensure you give yourself enough room from the "Sha bolt" pools to be able to dodge them safely.  This will deal low shadow damage but knock you back.  Could be detrimental if healers constantly get hit by this.

For Melee players, do not get too close to the boss or you will get hit with "Seeping Sha", this is noted by the large pool surrounding him.  This will hit for moderate dmg and knock you back.

Phase 2 - SPLIT

Again, once he reaches 0 health, he "Splits".  Any dark or watery pools that are still up from the "Sha Bolts" or the "Swirl" will immediately go to the middle of the room.  LET THEM, these do nothing. 

The primary pools you need to watch are the Sha Puddles and Contaminated Puddles.  The Sha will be dark, the Contaminated will be more watery in color.  For every Sha Puddle killed, and Contaminated Puddle cleansed, he will lose 1 percent of his remaining Corruption bar.  When he re-forms, his health should be equal to the amount of corruption he has.  So if he is at 77 stacks of corruption after a re-form, he will start at 77% health, etc.

Sha Puddles - he will form 1 Sha Puddle for every 4 units of corruption he has.  So on the first split, since he has 100 corruption, he should spawn 25 Sha Puddles.  That is based on Dungeon Journal entry, but from videos it doesnt "appear" to be that many, it also contradicts the next part of the journal entry as well by watching the video.

Once a Sha Puddle is destroyed, it will give "Sha Residue" to players within 10 yards, dealing 25% increased damage to other Sha Puddles.  This STACKS!

Contaminated Puddle - he will form 1 Contaminated Puddle for every 4 units of corruption that have been previously removed.  This is where the dungeon journal and video are contradictory.  Based on the journal entry, on the first Split, there should be NO Contaminated Puddles to cleanse  since he is at full corruption, but the video clearly shows Contaminated Puddles available to be cleansed.  It may not be like that "live" and they may have only had them available for PTR testing purposes.  Regardless, once these are healed/"cleansed" they will turn a dark blue color.

When a Contaminated Puddle is healed, it will progressively slow down in proportion to the amount of healing it has received until it is fully "cleansed".  Once a Contaminated Puddle is cleansed, it will restore 25% of mana to allies within 10 yards and increase healing done by 75%, this STACKS!

Once either of the puddles reach the center of the room, Immerseus will pulse AoE dmg to the raid, based on the type of puddle that reaches him.  If a Sha OR Contaminated Pool reaches him, he will pulse for around 100-110k shadow damage.  Once a Purified Pool (yes, one that is fully healed) reaches the middle, it will only pulse for around 40-45k.  So ideally you want to kill all of the Sha Puddles and heal as many of the Contaminated Pools as possible, so when they any remaining get re-absorbed you dont wipe to the AoE damage.

TLDR (go back and read it)

This fight is fairly straight-foreward and shouldnt take long to get past.  Tank swap when appropriate, assuming 2 stacks.  Stay relatively spread, and overlap your own Sha Bolt pools so you have room to move.  When he splits, DPS the dark pools and HEAL the watery pools so you have less AoE to deal with on the re-absorb/re-form.  Raidwide defensive CDs are likely best used later in the fight. There will likely be more Sha Puddles up dealing more damage in the beginning, but at the end, it will be harder on the healers as there will be a LOT more Contaminated Pools to heal, more than the healers can handle by themselves, so there MUST be hybrid healing on them at the end. Overall it will best be determined how your raid make-up is and where you feel it will benefit the most.

Boss 1 of Siege of Orgrimmar opens with Immerseus, a fairly straightforward boss fight focusing on mechanics.

Immerseus is a TWO(2) phase fight consisting of two forms: Tears of the Vale, and Split Form. The goal is the "cleanse" Immerseus' corruption and not allowing said corruption to rejoin his physical form.

Phase 1: Tears of the Vale

Immerseus starts in this phase. In this phase he has 3 abilities that need to be taken into account.

1. Corrosive Blast: A frontal cone blast that hits for 500k+. Also leaves a debuff that increases damage taken from Corrosive Blast by 100%. Tanks will have to swap each blast to avoid any insta-gibs.
2. Sha Bolts: 125k Shadow Bolts that leave behind pools that tick 65k per second. Positioning of bolts around the room will be crucial. Pools despawn when Immerseus reaches Phase 2.
3. Swirl: Similar to Wise Mari or Hoptallus, this is a rotating damage beam that causes a knockback. The beam is a close blue color to the rest of the room as well as Immerseus. Identifying which direction will be crucial.

When Immerseus is DPS'd down to 0, Phase 2 will begin
Phase 2: Split
Immerseus starts to split when taken to 0 in Phase 1

1. Upon reaching Phase 2. Immerseus will split into many blobs. There are two types of blobs: Sha Puddles and Contaminated Puddles
2. Sha Puddles: Similar to Heroic Protectors, upon dying applies a "debuff" in a 10 yard radius increasing damage dealt by 25% to OTHER Sha Puddles.
3. Contaminated Puddles: Reversely, these puddles need to be HEALED up to 100% to despawn. As their health increases, their speed decreases. When healed to full health, all players with 12 yards will receive 25% mana. THIS IS ESSENTIAL.

If either type of puddle (blob) reaches Immerseus, they will deal 75k damage to the entire raid.

Conversely, each blob that does not rejoin with Immerseus will remove 1 Corruption from his existing Pool of 100. The goal of the fight is to completely cleanse the corruption meter.
After all blobs have either died or reached Immerseus, Phase 1 will restart until the fight is complete.