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Aberrus

The Forgotten Experiments

Boss #3
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Strategy Guide

In collaboration with
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FIGHT OVERVIEW
  • Three phase fight with 3 bosses. In each phase you fight one boss until they die and the next one joins the fight.

  • You always fight Neldris first, Thadrion second, and Rionthus last. They each have different abilities.

  • In P2, Thadrion regularly applies a permanent DoT on players that constantly stacks. Dispelling it makes it jump to a new player and reset stacks. You'll deal with several of them.

  • All 3 bosses apply the same tank debuff. Tanks need to collide to clear it, which applies a DoT to the raid proportionate to the number of stacks cleared.

HEROIC CHANGES
PHASE
1

You fight Neldris first.

EVERYONE

MOVE OUT IF MARKED.

DON'T STAND IN THE

PATH OF THE BOSS.

Play Button
HEROIC CHANGES
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Rending Charge
5s Cast

Neldris marks a few players and then dashes through them, dealing damage and applying a 30s stacking bleed to them and any players in his trajectory.

EVERYONE

DODGE THE FRONTAL CONE.

Play Button
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Massive Slam
3.5s Cast

Massive frontal cone toward a random player.

EVERYONE

MOVE OUT TO

REDUCE DAMAGE.

Play Button
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Bellowing Roar
4s Cast

Neldris roars and deals damage to the raid; the damage is reduced the farther away players are.

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Infused Strikes
Tank Mechanic

All 3 boss' melee attacks apply a permanent stacking DoT.


Touching another player (usually the other tank) who also has the DoT clears both players and applies a 20s stackable DoT to everyone.


Don't reset less than 20s apart. If you clear at high stacks, prepare some healing CDs.

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Infused Strikes
Tank Mechanic

All 3 boss' melee attacks apply a permanent stacking DoT.


Touching another player (usually the other tank) who also has the DoT clears both players and applies a 20s stackable DoT to everyone.


Don't reset less than 20s apart. If you clear at high stacks, prepare some healing CDs.

PHASE
2

You fight Thadrion second.

EVERYONE

MASS DISPELL PLAYERS AS LATE

AS POSSIBLE AT THE SAME TIME AND SPOT.

KILL THE ADDS THAT SPAWN.

Play Button
HEROIC CHANGES
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Unstable Essence
3s Cast

Regularly, Thadrion applies a permanent DoT on players that constantly stacks. Dispelling it makes it jump to a new player and resets stacks.


Dispelled players drop a circle that explodes a few seconds later and spawn an add that casts explosions until killed.


Unstable essences persist after Thadrion's death, until the end of the fight.

EVERYONE

HEAL THROUGH AND

QUICKLY KILL THE ADDS.

Play Button
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Violent Eruption
8s Channel

Regularly, Thadrion starts a channel that deals damage to the raid.


Any remnant still alive pulses raid damage while he channels.

EVERYONE

DODGE THE SWIRLS.

Play Button
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Volatile Spew
3s Cast

Thadrion launches projectiles in the room. Dodge them.

HEROIC ONLY
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Erratic Burst
10s Cast

Erratic Remnants spawned from dispelling Unstable Essence cast a long uninterruptable spell which deals a burst of raid-wide damage.

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Infused Strikes
Tank Mechanic

Similar to P1


All 3 boss' melee attacks apply a permanent stacking DoT.


Touching another player (usually the other tank) who also has the DoT clears both players and applies a 20s stackable DoT to everyone.


Don't reset less than 20s apart. If you clear at high stacks, prepare some healing CDs.

HEROIC ONLY
SHARE LINK
Erratic Burst
10s Cast

Erratic Remnants spawned from dispelling Unstable Essence cast a long uninterruptable spell which deals a burst of raid-wide damage.

SHARE LINK
Infused Strikes
Tank Mechanic

Similar to P1


All 3 boss' melee attacks apply a permanent stacking DoT.


Touching another player (usually the other tank) who also has the DoT clears both players and applies a 20s stackable DoT to everyone.


Don't reset less than 20s apart. If you clear at high stacks, prepare some healing CDs.

PHASE
3

You fight Rionthus last.

EVERYONE

BUMP THE BALLS BEFORE

THEY REACH THE BOSS.

Play Button
HEROIC CHANGES
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Temporal Anomaly
Boss Healing Mechanic

Regularly, Rionthus spawns an orb that slowly moves toward him. If it reaches him, he gets a 15% health absorb shield. 


Players can bump into the orbs to knock them away, which deals some damage to players.

EVERYONE

MOVE CIRCLES OUT

OF THE RAID.

Play Button
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Disintegrate
2s Cast

Regularly, Rionthus channels a beam on a few players that deals damage. They are then marked with a circle, slowing them and dealing damage to anyone nearby.

EVERYONE

WATCH WHERE THE

BOSS WILL FLY AND DODGE.

Play Button
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Deep Breath
3s Cast

Rionthus goes to the edge of the room and flies in a straight line lengthwise across the room twice, dealing massive damage to any players hit. 


There are 3 possible lanes Rionthus may fly over. He will favor the lane where most players are.

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Infused Strikes
Tank Mechanic

Similar to P1


All 3 bosses melee attacks apply a permanent stacking DoT.


Touching another player (usually the other tank) who also has the DoT clears both players and applies everyone a 20s stackable DoT.


Don't reset less than 20s apart. If you clear at high stacks, prepare some healing CDs.

SHARE LINK
Infused Strikes
Tank Mechanic

Similar to P1


All 3 bosses melee attacks apply a permanent stacking DoT.


Touching another player (usually the other tank) who also has the DoT clears both players and applies everyone a 20s stackable DoT.


Don't reset less than 20s apart. If you clear at high stacks, prepare some healing CDs.

0

RESOURCES

1
General Aberrus By Causese

A general WeakAura pack that provides "icon" style mechanics/debuff as well as short descriptions for each. Pretty standard. We also recommend downloading Causese Sound addon to hear vocal announcements. Feel free to thank the amazing Causese here (sorry, no Twitter that I know of...).

2
Co Tank Weakaura By Causese

Another must have by Causese if you play or are planning to play tank. It informs you when to taunt and how your co-tank is doing with their mechanics.


Make sure to checkout the Causese Sound addon to also pair it with appropriate sound announcements.

3
Raid Leader Exchange Discord

Stuck in your progress? Have any question about a certain boss or mechanics and how to deal with it? Want to help and support fellow raiders? Join this fantastic Discord, and let's build a Raid helping community.

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The Forgotten Experiments
AVAILABLE ANALYSIS
- Tank swaps
- Unstable Essence dispels
- Temporal Anomly kicks
- Boss frontal hits
- Much more
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CREDITS

Credits to our fantastic partner Echo for the gameplay footage and boss strategies.


Thanks to Katskratches our copywriter and Layria, our amazing English copy editor. Be sure to checkout Layria's Youtube channel for healer progression guides!


Credits to Akmi for the video editing. If you're looking for a video editor, feel free to DM him on our Discord!