TheWoWDBBoss
Thadrion
The Forgotten Experiments - Aberrus, the Shadowed Crucible
Thadrion is a boss of the The Forgotten Experiments encounter in Aberrus, the Shadowed Crucible.
Found In
Encounter Facts
3D Model
First-party render from the game files. Model © Blizzard Entertainment.
Model
Background
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
Spell detailsIn Mythic difficulty, Rending Charge does not expire.
Massive Slam
Spell details
Bellowing Roar
Spell details
Infused Strikes
Spell details
Infused Explosion
Spell detailsThadrion
Unstable Essence
Spell detailsIn Heroic difficulty, an Erratic Remnant is formed when Unstable Essence is removed and Unstable Essence persists after Thadrion's demise.
Erratic Remnant
Volatile Spew
Spell details
Violent Eruption
Spell detailsIn Heroic difficulty, Erratic Remnants inflict Arcane damage to all players during Violent Eruption.
Infused Strikes
Spell detailsInfused Explosion
Spell detailsRionthus
Deep Breath
Spell details
Temporal Anomaly
Spell detailsIn Mythic difficulty, Temporal Anomalies apply Temporal Fracture.
Temporal Fracture
Spell details
Disintegrate
Spell detailsInfused Strikes
Spell detailsInfused Explosion
Spell detailsAbility 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
Thadrion infuses players with unstable energy, inflicting Arcane damage and growing in intensity over time. Upon removal, the energy briefly coalesces and then explodes, inflicting Arcane damage to players. A lingering trace of energy then jumps to a nearby player and applies Unstable Essence.
Erratic Burst
Arcane · 10 sec cast
The periodically erupts with energy, inflicting Arcane damage to all players.
Volatile Spew
Physical · 3 sec cast
Thadrion spews forth arcane globules that inflict Arcane damage to players of the impact locations.
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
Infused Explosion
Arcane · Instant · Lasts 20 sec
The energy from explodes, inflicting Arcane damage to all players and an additional Arcane damage every 2 sec for 20 sec. This effect stacks.
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.
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.
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 5 gold 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 79 gold34 silver 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 5 gold 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 78 gold58 silver 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 121 gold68 silver 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 74 gold14 silver for it.
- Venerated Mixing Fluid Miscellaneous, item level 418, requires level 70. Bind on Pickup. Usable by Paladin, Priest and Shaman. A vendor pays 5 gold 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 5 gold for it. Use: Aberrant Mixing Fluid.
- Pattern: Undulating Sporecloak Recipe, item level 1. Tooltip: “Teaches you how to craft Undulating Sporecloak.” A vendor pays 50 gold for it. Lowest listed price right now: 127 gold67 silver across 77 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.
