Strategy for the entire Valley of the Machine Gods operation in Veteran Mode going in chronological order. (Updated for 5.3)
Enrage: 9 min.
HP: 7 million
Tyth has two cleave/AoE attacks that follow the tank. One is a simple triangular cleave and the other is a long rectangular attack called Energy Wave. Tanks can simply stand on the edge of the platform and eat these attacks.
There is a tank swapping mechanic right after Inversion where Tyth places a debuff on the current tank that increase their damage taken. The tank being swapped in must stand outside the Inversion circle so they get pulled in. Otherwise Tyth will aggro a random person and cleave them. Tyth also regularly places a stacking armor debuff on the tanks that can be cleansed off by the healers.
Tyth has a mechanic where he will gain rage stacks. These stacks will increase and decrease through the fight with a raid wiping mechanic if it reaches 10 stacks. Tyth gains 1 stack of Rage every time an ally droid is killed (3 stacks if he killed the ally droid himself) but will auto-cleanse or decay one of his stacks every 8 seconds. The Grace droid also have a cleanse skill that will remove 3 stacks.
The goal of this fight is basically managing the rage stacks to ensure it never reaches 10 stacks. Once Tyth reaches 10 stacks, he will cast a raid-wide AoE that deals massive damage and wipe out any remaining droids. This basically enables him to chain cast this AoE due to additional stacks from the newly killed droids.
As Tyth gain more stacks, his auto attacks (cleave and Energy Wave) get bigger in radius and becomes more likely to hit helper droids that spawn. His attacks increase in size at 3 stacks and 6 stacks.
Every 30 seconds, helper droids will spawn in waves. There are four types of helper droids. Killing any of them will grant Tyth 1 rage stack so you will need to control on when you kill them. Tyth’s AoEs can also kill them so do not drag them in front of Tyth.
Guardian – These are just regular droids you have to kill. They have ranged attacks called Guardian Blast that hits frequently and can burst down on a raid member.
Justice – These droids have an immunity shield called Multi-Phase Shield. These shields will damage you if you step in it and they make the Justice droid immune until you remove by it temporarily using a stun ability.
Lance – Droids that cast a long rectangular attacks called Energy Lance that you can avoid.
Grace – The most important droid. This droid cast two channeled skills – Avira’s Grace and Avira’s Restoration. You will need to assign a DPS or two to interrupt Avira’s Restoration, a channeled heal that removes 1 stack of Tyth’s Rage but also heal him for 3%. Avira’s Grace on the other hand, is an ability that remove 3 stacks of Tyth’s Rage and should be allowed to cast. You do not want to kill the Grace droid until the appropriate time or otherwise you may mess up Tyth’s Rage stacks and result in a raid wipe. The Grace droid will cast Avira’s Restoration 3 times before casting Avira’s Grace. A single melee DPS can handle all the interrupts using Leap/Interrupt but a Ranged DPS will need to be used as a back up during Inversion mechanic.
From 100-60%, every 30s a wave of four droids will spawn. The droid compositions are random but every even wave (i.e. wave 2, 4 6, etc) will have at least one Grace droid. Sometimes two Grace droids can spawn so you will need to have backups prepared for interrupts. Past 60%, droid waves will compose of five droids per wave and adds to the difficulty.
You want to time your kills so that the Grace droids can remove any stacks of Tyth’s Rage before being killed. This allow you to kill the Grace droid, wait for the decay, and then start the next droid wave without any stacks.
Inversion is a mechanic exclusive to hard mode. 20 seconds into the fight and every 40 seconds after, Tyth will cast an inversion skill. This skill will pull all raid members on the platform to Tyth unless they are already inside the Inversion circle.This is a 5 seconds channel so you have 5 seconds to get into the circle.
If you are not inside the Inversion circle at end of the channel, you will get pulled into Tyth and receive a debuff that reduce your damage and healing. If you are already inside the circle at end of the channel, you will get thrown out of the circle and instead get a buff that increases your damage and healing. What the tank want to do is to position Tyth right at edge of the platform and have everyone run inside the inversion circle to the edge of the platform right in front of Tyth. This will get them thrown to the middle of the platform with the damage/healing buff.
One important note about Inversion is that it will block all movement/gap closer skills for a few seconds so you cannot use skills such as Force Speed/Force Barrier/Leap etc. During this you will need to have a ranged DPS focusing interrupts on the Grace droid as melee cannot leap back to the Grace droids in time to interrupt the heals.
As Tyth get to 30%, you may choose to ignore all the adds but the Grace and do a final burn on Tyth. Healers will need to run around and kite the adds while rest of the raid focused on killing Tyth before its adds overwhelm the raid. Remember that past 60% Tyth summon droids that comes in waves of 5 so the Rage stacks accumulate faster and you have very little margin for error. It ultimately comes down to your group DPS as this tactic may not work if the DPS is lacking.
Aivela and Esne
Nexus: 1.69 mil
Aivela/Esne: 6.38 mil
Phase 1 is from the start of the fight until the Nexus is at 50%. You won’t be fighting Aivela and Esne in this phase. It is a more of a preparation phase. The room is shaped like a rhombus, in the middle of the rhombus is the Nexus surrounded by 8 Codex units.
Nexus is immune to damage until 8 Codex Units are killed first. These Codex units have no special attacks other than autoattacks called Pulse Fire. These Pulse Fire attacks hits for ~10k each so healers will need to do some healing while DPS nuke them down.
Each Codex unit drops a Polarity Module when killed. When you pick up this polarity module, it give you a new temporary bar with two icons. These two icons are positive and negative polarity labeled as blue and red icons respectively. Everyone need to pick up this polarity module as it is essential for the rest of the fight.
Once the Codex units are killed and everyone picked up their Polarity Unit, it is time to damage the Nexus to 50% to trigger phase 2. Nexus right now just have the Charge Fire ability, a long damaging beam with a charge up telepgraph. This seems to be randomly aggroed and can target a DPS so if you see it targeting someone else, just move away.
Phase 2 begins once the Nexus is damaged to 50%. It will shield itself and becomes invulnerable to spawn Aivela and Esne. At the same time, four Countermeasures will spawn along with four Glare units.
Aivela and Esne both casts an ability called Remote Access. This ability seems to be % based as they can cast it out of sync of each other at times. When this cast goes off, the tank with the aggro will receive a debuff on them with the corresponding color (blue for Aivela, red for Esne). The tank who received this debuff first will need to wait for the other boss to cast Remote Access debuff on the other tank and then do a tank swap (i.e. tank on Aivela going to Esne and vice versa).
Failure to tank swap in time will cause the Aivela and Esne to cast Spike instead of Remote Access and this Spike debuff prevents the tank from changing their polarity. This usually results in a wipe unless there is a DPS with an extra taunt that can take aggro from the tank with the Spike debuff temporarily to allow the Spike debuff to wear off.
Basically if Aivela or Esne sees that their threat target still have the same Remote Access debuff, they will cast Spike instead of Remote Access.
The four Countermeasure units will autoattack the highest threat and apply a stacking debuff called Disruptor Pulse. Each stack of this Disruptor Pulse reduces healing done by 1% per stack. This debuff can stack to high stacks very quickly so it is essential that they don’t get on the healers as this healing debuff can make later phases very difficult. The stacks will fall out after 8 seconds unless it get refreshed by the Countermeasures attacking.
Each DPS need to control a Countermeasure by getting aggro on them via attacking them periodically. The Countermeasures wipe their aggro every 8 seconds so the DPS need to switch back to the Countermeasures, whack a couple times and then switch back on to the boss. It is pointless to kill the Countermeasures as they will just respawn immediately. DPS can focus target one of the Countermeasures and watch for a cast called Prioritize as that is the aggro wipe. They can reattack the Countermeasures after to regain aggro.
Tanks can also help with this by using their AoE taunt from time to time next to the Countermeasures.
Healers need to position themselves next to the Glare on either end and bait the Purification laser beam. Their Purification laser beam will always target the closest person to them with the opposite polarity. The first purification beam will be random polarity so you just have to toggle a color and hope for the best. The purification laser beam follows you so all you need to do is to run to the side and have the beam shoot away from rest of the raid in the middle. Glare units will change their color to be the same as their beam right before they cast the beam so you have an idea of the next polarity since they alternate between red and blue.
This beam will not hurt you if you have the same polarity/color as it. So once the Glare unit targets you with that beam, swap to the same color as the beam and let it pass through you. Glare units will alternate polarity so you won’t have to swap polarities again until it targets you again. Players without the correct polarity or no polarity will eat massive damage rapidly (~35k damage per tick and two ticks per second) and die rapidly.
The two middle Glares won’t activate this phase so you don’t have to worry about them.
Aivela and Esne will cast Polarized Energy Burst in between casts of Remote Access. This targets a random player with an circular AoE. This player need to use their polarity modules and swap to the same color to avoid taking damage. You have a few seconds after receiving the AoE circle before the damage drops so there is time to swap and move out of other players.
In the event that you are a target of both Polarized Energy Burst and Purification beam from the Glares, always swap to the same color as the Purification beam as the Polarized Energy Burst won’t kill you but just tickle you with ~10k damage.
Phase 3 is triggered once both Aivela and Esne reaches 71%. They will both go immune briefly and start casting Radiance. The basic mechanics are similar to Phase 2 but there are a couple of major additions.
Radiance - Both Aivela and Esne will cast a very wide polarized circle around themselves (Blue for Aivela and Red for Esne). Players standing inside these Radiance circles will take ~10k damage every 3 seconds if they don’t have the same color as the Radiance circles. Players need to segregate to the sides and avoid the middle overlap.
Healers doing the Glares at the ends will just need to eat the Radiance damage as if you have the timing off for polarities, the Glares may target someone else in the raid.
Synergy Protocol - Synergy Protocol is a channeled casted by the Nexus in the middle to both Aivela and Esne. You will need to intercept this cast by having a player standing in between Nexus/Aivela and Nexus/Esne. Failure to stop this cast will cause Aivela and Esne to do double damage to the raid, resulting in a raid wipe with Radiance.
This channel is 24 seconds long and for every second the player standing in between Nexus and the bosses receive a stacking DoT that continuously tick damage. You gain 1 stack of this DoT for every second you intercept this cast. The stacks also falls off with 1 stack removed every 3 seconds. The DPS standing in the middle doing the Synergy Protocol can swap to any polarity as the area they stand in is the overlap of two Radiance circles so they will always take damage from one Radiance.
Once your stop getting this stacking DoT, you will receive a second debuff that looks like a Death Mark icon. This second debuff prevents you from intercepting this Synergy Protocol again for 15 seconds until this debuff wears off. If you try to intercept it again with this debuff on, you will die instantly. Tanks and other players need to make sure they don’t run between the Nexus and the intercepting player as this can kill them instantly.
Nexus will channel Synergy Protocol 2-3 times during this phase so you just need to have one set of DPS take care of the first Synergy Protocol and the next set to come in for the second channel. For the third channel, just have the first set of DPS take care of the Synergy Protocol. They will take more stacks but the debuff should be gone so they won’t get killed instantly. DPS will continuously take damage until the stacks are completely removed.
The two middle Glare units will activate so the set of DPS not doing the Synergy Protocol will need to take care of these two additional Glare units and make sure they don’t beam into the middle of the raid.
Phase 4 is triggered once both Aivela and Esne reaches 42%. All the mechanics from Phase 2 and Phase 3 except for Synergy Protocol occurs in Phase 4. Additionally, the Purification beam from the Glare units (all 4) start to rotate so you will need to adjust your colors to match the rotating beams as they swing to you. They can rotate clockwise or counterclockwise but there will always be two blue beams and two red beams. Generally the middle is not a safe spot since it is a high traffic area for the beams so you want to stay on your side and avoid the beams.
One thing you need to be super careful about is the width of the beams. The damage area of the beams is larger than the beam graphic. Instead, you need to look for the two thin lines surrounding each beam. Once you cross those thin lines, you are in safe territory.
There is some sort of pattern with respect to how the beams rotate but what I find easier is to switch your polarity matching the closest beams to you and then then run through two beams matching your polarity. Once you have done that, you can just swap to the other polarity and stand still to wait for them to come to you. Sometimes this works but sometimes this doesn’t since an opposite colored beam could be coming for you while you are chasing down the second beam of your color. If this happens you will need to switch your polarity on the fly.
Both Aivela and Esne will move in this phase so tanks can just swap taunt instead of swapping places like they did in the previous phases. This makes it easier to avoid the beams as they don’t need to run through the middle.
You want to burn both bosses down to ~20% and push one down ~10% slowly. Once one of the bosses is at 10-12%, have one DPS kill the Nexus while rest of the raid push the 10% boss to 8%. When the Nexus is dead, it will drop an item similar to the polarity module. Have one person pick that item up and it will give you a 3rd ability on your temporarily ability bar called Disruptor Pulse.
Killing the Nexus immediately triggers Overdrive Mode on both bosses. Override Mode is a 8 second channel. At end of the channel both bosses gain 100% more damage, gain 5% HP and start casting Overdrive Energy Burst. This is a special version of the Polarized Energy Burst from earlier except it hits harder and you cannot avoid the damage from it since it is both blue and red circles at the same time. This is basically a soft enrage mechanic.
During Override Mode there will be no more Remote Access channels as Esne/Aivela just spams Overdrive Energy Burst so tanks don’t need to tank swap.
What you want do here is to push the 8% boss to 7% right away and this triggers the immunity shield on that boss and interrupts the Overdrive Mode channel. Immediately use the new Disruptor Pulse ability on the 7% boss to remove immunity shield and cancel the Override Mode channel. You have a few seconds here to kill that boss.
With one boss down, go back on the other boss and bring it down to 8%. Push it to 7% to trigger the immunity shield and then use the Disruptor Pulse ability (25 seconds cooldown) to remove the shield again and finish the fight.
Doing this last phase you still have to worry about Countermeasures (the other tank can take care of one side after one boss is dead) and the rotating beams from the Glare units. Make sure you get away from other players when you get the Overdrive Energy Burst circles.