Castrum Meridianum

Dungeon Icon.pngCastrum Meridianum
Dungeon
Open this page in Garland Data Open this page in the Eorzea Database Run a search in YouTube
Castrum Meridianum Image.png
So begins the third phase of Operation Archon, which entails a frontal assault upon Castrum Meridianum, Gaius van Baelsar's seat of power. Forming the main thrust, the Immortal Flames will strike at the stronghold with all their strength, though this is but a feint. While the garrison's eyes are drawn outwards, you and your comrades must steal past its defenses and attempt to deactivate the magitek field which protects the Praetorium, the fortress within a fortress wherein the Ultima Weapon is believed to be housed.

Requirements: Must be on, or have completed, Rock the Castrum.
Restrictions: 120 minutes

Tankroleicon.png Healerroleicon.png Dpsroleicon.png
2 2 4
Type: Dungeon
Zone: Northern Thanalan
Region: Thanalan
Minimum Level: 50
Synced Level: 50
Min iLvl: 42
Unlock Quest: Rock the Castrum
Duty Finder: Dungeons: A Realm Reborn
Duty Roulette: Main Scenario
Expansion: Original
Patch: Patch 2.0
Tomestones
Allagan Tomestone of Poetics Icon.png
20
Objectives
  1. Darken the searchlight: 0/2
  2. Darken the searchlight: 0/1
  3. Obtain incendiary #37: 0/2
  4. Destroy the ceruleum pump: 0/2
  5. Destroy the field generator: 0/3
  6. Imperial identification Key: 0/2
  7. Darken the searchlight: 0/1
  8. Darken the searchlight: 0/2

The Black Eft
Divider3.png
Attack Name Description
Adds Multiple waves of adds will spawn, consisting of Imperial War Hound, 8th Cohort Laquearius, and Imperial Signifer. Should be picked up by the OT.
Photon Stream Frontal ranged attack dealing moderate damage.
Magitek Cannon AoE targeting a random player that deals heavy damage.

Advice and Tips

  • The adds can be ignored as they will disappear once the boss dies.
    • If your group chooses to pull all of the adds from the start into the boss room, you'll likely need to just nuke everything down as the adds from outside the boss room will remain after he dies. It is possible to escape to the next room without killing them, but is dangerous and players will likely die.
Magitek Vanguard F-I
Divider3.png
Attack Name Description
Adds Multiple waves of adds will spawn, consisting of 8th Cohort Signifer, 8th Cohort Sagittarius, and Magitek Reaper. Should be picked up by the OT.
Cermet Drill Frontal melee attack dealing moderate damage.
Drill Cannon Frontal line AoE dealing heavy damage.
Overcharge Frontal cone AoE dealing heavy damage and applying paralysis.

Advice and Tips

  • The adds can be AoE'd down with the boss or ignored.
Magitek Colossus Rubricatus
Divider3.png
Attack Name Description
Adds Multiple waves of adds will spawn, consisting of 8th Cohort Laquearius, 8th Cohort Medicus, and Magitek Vanguard H-1. Untargetable Magitek Hands will also spawn that Cid will take care of. Should be picked up by the OT.
Grand Sword Frontal cleave dealing moderate damage.
Exhaust Frontal line AoE dealing moderate damage.
Magitek Ray AoE that targets a random player, dealing moderate damage.
Magitek Field Buff granting Magitek Colossus Rubricatus Vulnerability Down. Dispelled when Cid kills the Magitek Hands.

Advice and Tips

  • If you bring the boss to where Cid is using his AoEs on the machinery, he will "help" you kill him.
  • A well timed stun can prevent the boss' use of Magitek Field.
Livia Sas Junius
Divider3.png

Phase 1

Livia cannot be tanked in this phase; she will lock on to whoever last hit her with an Artillery Cannon.

Attack Name Description
Magitek Armor Can only be damaged with Mark XLIII Artillery Cannons. Requires 8 shots to break. Livia will target whoever last hit her with an Artillery Cannon with Photon Stream and Magitek Cannon.
Mark XLIII Artillery Cannons Used to break the Magitek Armor. Can only be fired after the slow loading process from the Magitek Hands. Can be destroyed but will be repaired after a certain amount of time.
Magitek Hands Activated by interacting with a Magitek Missile Pile. Will collect a missile to load into the Artillery Cannon, first loading the one nearest to it unless it is broken, then moving on to the far one. Can be killed very easily, but will respawn after a certain amount of time.
Photon Stream frontal melee attack dealing minimal damage.
Magitek Cannon AoE attack centered on random player dealing heavy damage.
Adds Multiple adds will spawn each time an Artillery Cannon is used and will target the Magitek Hands and the Artillery Cannons to make the fight last longer.

Advice and Tips

  • The last player to hit her should stand in the middle to keep Livia there so she won't damage the Artillery Cannons.
  • It's best to load all 4 Artillery Cannons before firing so that it's easier to group up all of the adds and burn them down. It also means that for the second wave, you will defeat her Magitek Armor so you don't have to deal with the rest of them.

Phase 2

Attack Name Description
Aglaia Bite Melee attack dealing moderate damage.
Aglaia Climb Frontal attack that hits the target rapidly.
Delta Trance Melee attack hitting target 5 times.
Roundhouse AoE attack dealing minimal damage.
Stunning Sweep AoE attack dealing moderate damage and inflicting paralysis.
Angry Salamander Frontal line AoE dealing moderate damage.
Adds Spawns ~3 waves of adds consisting of 7th Cohort Secutors and the final wave having a Magitek Colossus.

Advice and Tips

  • Make sure the OT picks up the Magitek Colossus so it doesn't kill anyone.

(Fixed Rate Drop)
Livia sas Junius Card Icon.png
Additional Coffers
Divider3.png
Treasure Coffer: 15-8
Hi-Elixir Icon.png X-Ether Icon.png X-Potion Icon.png
Treasure Coffer: 11-13
Hi-Elixir Icon.png X-Ether Icon.png X-Potion Icon.png
Treasure Coffer: 12-6
Hi-Elixir Icon.png X-Ether Icon.png X-Potion Icon.png
Treasure Coffer: 10-10
Hi-Elixir Icon.png X-Ether Icon.png X-Potion Icon.png
Drop Table (1)
Divider3.png
Item Type iLvl Requirements Stats
 Livia sas Junius Card Icon.png  
Livia sas Junius Card
Gold chest icon.png
 Triple Triad Card  &00000000000000010000001&00000000000000010000001
Req. Level 1
An uncommon (★★) card used in the game Triple Triad.