The Aetherochemical Research Facility

Dungeon Icon.pngThe Aetherochemical Research Facility
Open this page in Garland Data Open this page in the Eorzea Database Run a search in YouTube
The Aetherochemical Research Facility.png
Your pursuit of the archbishop has brought you to the Aetherochemical Research Facility, at the heart of the floating isle of Azys Lla. However, he and his knights are not the only threat for which you must be prepared; shortly before your arrival, the VIth Imperial Legion entered the facility in search of the secret to mastering primals, and their presence will serve to complicate matters. With multiple factions and their ambitions set on a collision course, your mission promises to be fraught with danger and uncertainty both.


Restrictions: Time limit- 90 minutes

Tankroleicon.png Healerroleicon.png Dpsroleicon.png
1 1 2
Type: Dungeon
Zone: Azys Lla
Region: Abalathia's Spine
Minimum Level: 60
Synced Level: 60
Min iLvl: 142
Synced iLevel: 180
Unlock Quest: Heavensward (Quest)
Duty Roulette: Level 50/60 Dungeons
Expansion: Heavensward
Patch: Patch 3.0
Allagan Tomestone of Poetics Icon.png
  • Clear Analysis and Proving: 0/1
  • Clear Bioweapon Research: 0/1
  • Defeat Harmachis: 0/1
  • Defeat all opposition: 0/1
  • Defeat the Ascian Prime: 0/1

Regula van Hydrus
Attack Name Description
Bastardbluss Frontal cleave attack dealing moderate damage.
Judgement Small circle AoE centered on Hydrus dealing moderate damage.
Magitek Turret I Random target and tether to target. Players can intercept tether and take the damage instead. Turrets will self-destruct doing high damage if not destroyed.
Magitek Slug Straight line, targeted room length AoE.
Magitek Spread Large conal AoE dealing moderate damage, with a safe zone behind Hydrus.
Magitek Turret II Circle AoE called Aetherochemical Grenado. Turrets will self-destruct doing high damage if not destroyed.

Advice and Tips

  • Make sure to kill turrets as they can hurt.
  • The boss jumps around a lot, so be prepared to run if you're melee.
Attack Name Description
Weighing of the Heart Harmachis takes on one of the following forms:
Sphinx form: AoEs and poison.
Serpent form: High damage tank buster (6000-8000+ damage)
Naga form: Petrifaction - avoided by looking away from boss.
Anti-Machina form: Ballistic Missile - Party member bound and targeted by high-damage missile. Exactly one other player should stack on top of the targeted player to negate the damage. If 3 or more players are hit by the AoE the damage will not be mitigated.
Cthonic Hush Frontal AoE breath attack dealing moderate damage and poison.
Riddle of the Sphinx Ground target AoE.
Ka Wide conal AoE.

Advice and Tips

  • Keep an eye on which form the boss takes so you can avoid the upcoming mechanics.
Lahabrea & Igeyorhm
Attack Name Description
Dark Orb Attack dealing moderate damage.
Sea of Pitch Ground AoE DoT.
Shadowflare Room wide AoE dealing moderate damage.
Blizzard Sphere (Igeyorhm) Spheres with AoE which freezes the player.
Permafrost (Igeyorhm) Freezes the floor and deals damage.
Dark Fire II (Lahabrea) Spheres with AoE which deal high damage.

Advice and Tips

  • The fight starts with Igeyorhm being the only Acian targetable. Once you get him to 50%, he will become untargetable and you will fight Lahabrea. Once he gets to 50%, you will start the next "phase".
Ascian Prime
Attack Name Description
Height of Chaos Tank buster. Frontal cleave dealing major damage.
Ancient Eruption AoE circles placed under each player.
Shadowflare Room wide AoE dealing moderate damage.
Annihilation Summons Blizzardsphere and Firesphere. Prioritize defeating the Blizzardsphere first.
Blizzardsphere If not killed during Annihilation, it will turn the entire floor into ice that players can slip on if they move.
Firesphere If not killed during Annihilation, it will set off a roomwide AoE.
Universal Manipulation Room wide AoE that inflicts multiple status ailments and moderate damage. Each player should "hide" inside a void when the cast bar is about halfway done to avoid getting hit. Each void can only hold a single player.
Entropic Flame Multiple straight line AoEs.
Chaos Bleed Orbs are tethered to each player, and explode for AoE damage when they make contact with any player. Pop them out of range of other players.

Advice and Tips

  • Stack together for the donut AoEs so no one gets hit by them.
  • Make sure you know where the voids are for Universal Manipulation, especially so if its a pug group in case someone takes the void you were planning to use.

(Fixed Rate Drop)
Faded Copy of Imagination Icon.png

Drop Table (1)
Item Type iLvl Requirements Stats
 Faded Copy of Imagination Icon.png  
Faded Copy of Imagination
Gold chest icon.png
 Orchestrion Roll  &00000000000000010000001 Timeworn pages of sheet music retrieved from the Aetherochemical Research Facility.