Aberrus, the Shadowed Crucible

The Forgotten Experiments heroic Boss Guide

Scalecommander Sarkareth Boss Guide
Purke
Last Updated: 29th Apr, 2023

Raid Setup

Introduction

The Forgotten Experiments is a three-boss, single-target/light add-cleave encounter. Players will engage with each boss one at a time, with the next one joining the fight after the previous boss is defeated. Each boss boasts its unique set of abilities and presents a unique challenge for players to overcome. The final boss will put your football skills to the test and may cause an uproar of excitement from players, as several players scream "Siuuuuu" on voice comms.

Fight Style: Single Target fight with light cleave

Recommended Setup: 2 Tanks / 4-5 Healers / 13+ DPS

Useful Utilities: Dwarf Racial (Stoneform), Priest Mass Dispel, Monk Tiger’s Lust, Paladin Hand of Freedom, Evoker's Cauterizing Flame

Video Guide

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Easy Mode

General

  • You fight three bosses in a row, Neldris, Thadrion, and Rionthus.
  • Use Hero/Lust on Thadrion (2nd Boss) to kill him quickly and avoid extra damage to the raid.
  • Tanks need to avoid unnecessary raid damage by keeping their Infused Strikes DoT for as long as possible and reset in between boss abilities.
  • Dodge ground based (swirls etc.) boss abilities.

Neldris

  • Avoid getting hit by Rending Charge unless its targeting you.
  • Remove all Bleeds if possible.

Thadrion

Rionthus

  • Kick the ball away from Rionthus (Temporal Anomaly) by running into it.
  • Fly-over Breath ability will kill you, Dodge!

Mechanics

Neldris
Rending Charge Mechanic Icon

Rending Charge

Charges 4 players and applies bleed, others dodge

Several players get marked (Red Arrow) and after a few seconds, the boss will charge each player and hit them for 156,019 physical damage and apply a Bleed that ticks for 15,602 physical damage every 1 second for 30 seconds. Other players need to make sure to avoid standing in the charge path, otherwise they will also get hit by it.

Massive Slam Mechanic Icon

Massive Slam

Dodge

Massive swirlies around the boss that deal 218,427 physical damage if you get hit by it, simply dodge.

Bellowing Roar Mechanic Icon

Bellowing Roar

Dodge

Distance based AoE that deals up to 218,427 arcane damage. Move away from the boss when he is casting this.

Infused Strikes Mechanic Icon

Infused Strikes

Tank

Each melee attack will inflict 12,482 arcane damage every 1 second, and it stacks. Touching another player will cause the stacks to reset, but will damage the raid for 15,602 arcane damage and apply a DoT that ticks for 12,482 arcane damage.

Try to reset when there is no significant overlap happening.

Thadrion
Unstable Essence Mechanic Icon

Unstable Essence

Dispel when DoT stacks are high, then kill the add quickly

Players will gain a dispellable DoT that ramps up faster the longer it is up. After getting dispelled, it will jump to another player and create a large circle on the ground that inflicts 124,815 arcane damage to anyone standing in it. It will also spawn an add that will slowly cast Erratic Burst, which deals 46,806 arcane damage to all players, if not killed before.

You should always look to hold the DoT for as long as possible, as dispelling early will just make you spawn more adds. Depending on your group’s damage, the boss might cast 1 to 3 extra Essences, which makes the fight significantly harder.

Volatile Spew Mechanic Icon

Volatile Spew

Dodge

A bunch of swirls on the ground that need to be dodged. They deal 218,427 arcane damage if you fail to dodge them.

Violent Eruption Mechanic Icon

Violent Eruption

Heal and do not dispel Unstable Essence during this time

The boss will inflict 46,806 arcane damage to all players every second for 8 seconds. Additionally, any Erratic Remnant currently up will also duplicate this ability and inflict an extra 31,204 arcane damage every second during the Violent Eruption cast.

Infused Strikes Mechanic Icon

Infused Strikes

Tank

Each melee attack will inflict 12,482 arcane damage every second, and it stacks. Touching another player will cause the stacks to reset, but will damage the raid for 15,602 arcane damage and apply a DoT that ticks for 12,482 arcane damage. 

Try to reset when there is no significant overlap happening.

Rionthus
Deep Breath Mechanic Icon

Deep Breath

Dodge Breath

Raszageth airline ability. The boss will fly in several directions, dealing lethal damage to anyone getting hit by it. Avoid at all costs.

Temporal Anomaly Mechanic Icon

Temporal Anomaly

Kick away from the boss

A ball of light that you need to intercept to kick it away. If it reaches the boss, he will gain an absorb shield equal to 10% of his health. The ability also does damage to the player who knocks the ball.

Disintegrate Mechanic Icon

Disintegrate

Spread

Shoots a beam at several players, dealing 24,963 Spell Frost damage every second for 3 seconds. 

Afterwards, targeted players get slowed by 30% and deal damage to anyone within 5 yards for 16 seconds. 

Simply move away from others.

Infused Strikes Mechanic Icon

Infused Strikes

Tank

Each melee attack will inflict 12,482 arcane damage every second, and it stacks. Touching another player will cause the stacks to reset, but will damage the raid for 15,602 arcane damage and apply a DoT that ticks for 12,482 arcane damage.

Try to reset when there is no significant overlap happening.

Strategy

Fight Overview:

  • You will fight one boss at a time
  • The boss order is: Neldris > Thadrion > Rionthus
  • You will fight each boss till 0% health

The room is relatively small and there is no real positional requirement. You just need to dodge abilities.

Hero/Lust should be used on Thadrion, since you want to skip unnecessary Unstable Essence applications.

Tanks need to make sure to keep their Infused Strikes DoT for as long as possible, to avoid unnecessary raid damage. However, random factors like players accidentally walking over tanks will contribute heavily to this. We recommend marking the tanks and making sure everyone stands far away from them.

Neldris

The main thing here is to avoid getting extra Rending Charge stacks (by randomly getting hit by the charge). However, the bleed is currently very weak, only lasts for 30 seconds and is gone after Neldris is defeated, so is overall not really a problematic ability.

Dodge swirls and melee players make sure to move out of melee range when Bellowing Roar is being cast, as staying close to the boss will inflict max damage.

Thadrion

Pop Hero/Lust and make sure you have all of your cooldowns available. You will want to kill him as quickly as possible, to avoid getting extra Unstable Essence in the raid.

Once a player has the Unstable Essence DoT, hold it for as long as possible to avoid spawning the adds too frequently. At around 10-15 stacks, it should be fine to dispel. The player should be around 10 yards away from the boss for the dispel, wait for the circle to explode, then move the boss on top of the add for extra cleave. Make sure all adds are dead before the Violent Eruption.

Healers need to be aware of Violent Eruption, as it will do moderate damage to the entire raid and might ramp up pretty fast if there are leftover adds alive.

Dodge the swirls, as they nearly one-shot you if you get hit.

Keep in mind that killing Thadrion won't make Unstable Essence disappear, you will carry them over to the next boss.

TIP: To make dealing with Unstable Essence even easier, place a world maker and have all players carrying the debuff stack on it. Mass dispel and boom, put the boss on top of them and press all the AoE buttons.

Rionthus

Make sure to deal with Unstable Essence the same way you did in the prior boss phase. However, now you don't have to focus them as heavily, since there are no Violent Eruption casts in this phase. They will still do raid wide damage if they finish the cast, but it doesn’t hurt as much as the Violent Eruption combo.

Temporal Anomaly will spawn somewhere in the room and will try to reach the boss, have random players just stand in its path to knock it away. If you are low health, avoid getting hit by it, but never let it reach the boss!

Disintegrate targets simply stand to the side and do not touch other players. Be extra careful during Deep Breath, as you are slowed by 30%, so dodging might be slightly harder.

Deep Breath will basically kill anyone in its path. The boss will do 2 flyovers and will always point to the direction he will fly. AVOID!