TheWoWDBBoss
Thadrion
The Forgotten Experiments - Aberrus, the Shadowed Crucible
Found In
Adventure Guide Entry
The in-game Adventure Guide text for The Forgotten Experiments encounter in Aberrus, the Shadowed Crucible.
The development of the dracthyr produced many iterations, some more successful than others. Early versions of the experiment proved far too volatile to destroy. Kept dormant for thousands of years, these creations have now awakened, and seek to test their prowess against the champions of Azeroth.
Encounter Facts
Instance Entrance: Zaralek Cavern
Aberrus, the Shadowed Crucible entranceThe Aberrus, the Shadowed Crucible entrance is in Zaralek Cavern, at 48.5, 10.0 on the Zaralek Cavern map.
Abilities & Strategy
What the in-game dungeon journal describes for this encounter. Every ability links to its spell page.
Abilities & Strategy
Overview
The forgotten experiments within Neltharion's laboratory each represent a dark stage in the development of the dracthyr. Neldris enters the fray first and assaults the laboratory's intruders with Rending Charge. Upon Neldris' defeat, Thadrion bursts from his containment vat, afflicting players with Unstable Essence and belching forth Volatile Spew. As Rionthus' predecessor is defeated, he escapes his containment vat and begins to devastate the chamber with Neltharion's most potent version of Deep Breath. As Neldris reaches 50% remaining health, Thadrion bursts from his containment vat, afflcting players with Unstable Essence and erupting with Volatile Spew. As Thadrion reaches 50% remaining health, Rionthus escapes his containment vat and begins to devastate the chamber with Neltharion's most potent version of Deep Breath.
Tanks
- Infused Strikes inflict increasing Arcane damage.
- Rionthus soars across the room during Deep Breath.
Damage Dealers
- Neldris dashes between marked players with Rending Charge, affecting anyone in her path.
- Unstable Essence creates an explosion upon removal and jumps to a nearby player.
- Rionthus gains a shield that absorbs damage if Temporal Anomalies reach him.
Healers
- Neldris' Rending Charge inflicts heavy bleed damage on several targets.
- Violent Eruption inflicts heavy damage to all players.
- Unstable Essence creates an explosion upon removal and jumps to a nearby player.
Zealous Creations
Thadrion and Rionthus each break out of their containment vats to join the fray as their predecessor reaches 50% remaining health.
Neldris
Rending Charge
In Mythic difficulty, Rending Charge does not expire.
Massive Slam
Bellowing Roar
Infused Strikes
Thadrion
Unstable Essence
In Heroic difficulty, an Erratic Remnant is formed when Unstable Essence is removed and Unstable Essence persists after Thadrion's demise.
Erratic Remnant
Volatile Spew
Violent Eruption
In Heroic difficulty, Erratic Remnants inflict Arcane damage to all players during Violent Eruption.
Infused Strikes
Rionthus
Deep Breath
Temporal Anomaly
In Mythic difficulty, Temporal Anomalies apply Temporal Fracture.
Disintegrate
Infused Strikes
Ability Spells
Every ability the Adventure Guide lists for Thadrion, with its spell's school, cast time and duration and the description the game gives it.
Unstable Essence
Physical · 3 sec cast
Erratic Burst
Arcane · 10 sec cast
Volatile Spew
Physical · 3 sec cast
Violent Eruption
Physical · 3 sec cast · Lasts 8 sec
Thadrion erupts with energy, inflicting Arcane damage to all players every 1 sec for 8 sec.
Infused Strikes
Physical · Instant
3D Model
First-party render from the game files. Model © Blizzard Entertainment.
Drops
Loot the dungeon journal lists for this encounter in Aberrus, the Shadowed Crucible.
What is shown is the loot the game's own dungeon journal lists for this encounter.
What Each Drop Is
The The Forgotten Experiments encounter lists 17 items in the dungeon journal, item level 418. Equip slots covered: Waist, Feet, Shield, Wrist, Shoulder, Trinket, One-Hand and Held In Off-hand. 1 of them can be traded and 16 bind when picked up.
- Dreadful Quickened Bronzestone Miscellaneous, item level 480, requires level 70. Bind on Pickup. Usable by Death Knight, Warlock and Demon Hunter. Use: Quickened Bronzestone.
- Mystic Quickened Bronzestone Miscellaneous, item level 480, requires level 70. Bind on Pickup. Usable by Hunter, Mage and Druid. Use: Quickened Bronzestone.
- Venerated Quickened Bronzestone Miscellaneous, item level 480, requires level 70. Bind on Pickup. Usable by Paladin, Priest and Shaman. Use: Quickened Bronzestone.
- Zenith Quickened Bronzestone Miscellaneous, item level 480, requires level 70. Bind on Pickup. Usable by Warrior, Rogue, Monk and Evoker. Use: Quickened Bronzestone.
- Discarded Creation's Restraint Waist (Cloth), item level 418, requires level 70. Bind on Pickup. Stats: Intellect, Stamina, Haste and Versatility.
- Dreadful Mixing Fluid Miscellaneous, item level 418, requires level 70. Bind on Pickup. Usable by Death Knight, Warlock and Demon Hunter. A vendor pays 5g for it. Use: Aberrant Mixing Fluid.
- Exacting Augmenter's Sabatons Feet (Mail), item level 418, requires level 70. Bind on Pickup. Stats: Agility or Intellect, Stamina, Mastery and Critical Strike.
- Experiment 1, Kitewing Shield, item level 418, requires level 70. Bind on Pickup. Stats: Strength, Stamina, Versatility, Critical Strike and Intellect. Tooltip: “Even in failure, Zskarn ensured each subject found purpose.” A vendor pays 79g 34s for it.
- Manacles of Cruel Progress Wrist (Plate), item level 418, requires level 70. Bind on Pickup. Stats: Strength or Intellect, Stamina, Haste and Mastery.
- Mystic Mixing Fluid Miscellaneous, item level 418, requires level 70. Bind on Pickup. Usable by Hunter, Mage and Druid. A vendor pays 5g for it. Use: Aberrant Mixing Fluid.
- Neldris's Sinewy Scapula Shoulder (Leather), item level 418, requires level 70. Bind on Pickup. Stats: Agility or Intellect, Stamina, Haste and Versatility.
- Ominous Chromatic Essence Trinket, item level 418, requires level 70. Bind on Pickup. Stats: Agility or Strength or Intellect. Tooltip: “The beauty of its swirling colors belies the cruel experiments that followed.” A vendor pays 78g 58s for it. Use: Chromatic Resonance. Equip: Glimmering Chromatic Orb.
- Rionthus's Bladed Visage One-Hand (Warglaive), item level 418, requires level 70. Bind on Pickup. Stats: Agility or Intellect, Stamina, Critical Strike, Mastery and Intellect. A vendor pays 121g 68s for it.
- Thadrion's Erratic Arcanotrode Held In Off-hand, item level 418, requires level 70. Bind on Pickup. Stats: Stamina, Critical Strike, Haste and Intellect. A vendor pays 74g 14s for it.
- Venerated Mixing Fluid Miscellaneous, item level 418, requires level 70. Bind on Pickup. Usable by Paladin, Priest and Shaman. A vendor pays 5g for it. Use: Aberrant Mixing Fluid.
- Zenith Mixing Fluid Miscellaneous, item level 418, requires level 70. Bind on Pickup. Usable by Warrior, Rogue, Monk and Evoker. A vendor pays 5g for it. Use: Aberrant Mixing Fluid.
- Pattern: Undulating Sporecloak Recipe, item level 1. Tooltip: “Teaches you how to craft Undulating Sporecloak.” A vendor pays 50g for it. Lowest listed price right now: 221g across 70 US realms. Use: Learning. Effect: Undulating Sporecloak.
Read from the current game build's item data. Listed prices come from our latest US Auction House scan; a drop that binds when picked up never has one.
Achievements for Defeating It
10 achievements list a victory over Thadrion among their criteria.