The Final Coil of Bahamut - Turn 4

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Disambig icon.png This article is about the level 50 challenge-mode raid. For the third tier in general, see The Final Coil of Bahamut. For the Ultimate Raid involving Bahamut Prime, see The Unending Coil of Bahamut (Ultimate).

The Final Coil of Bahamut - Turn 4

The Final Coil of Bahamut - Turn 4.png
50 (Sync: 50)
Item Level
Party size
Full Party
8 man 2 Tank role.png 2 Healer role.png 4 DPS role.png
Time limit
90 minutes
Duty Finder
Raids (A Realm Reborn)
Allagan Tomestone of Poetics 30 
Req. quest
Feature quest Fragments of Truth
Northern Thanalan (X:19, Y:20)
The Burning Heart
The echo icon1.png The Echo
Permanent +20%

Restored to his senses in defeat, Louisoix uses his final moments to send your party to the main bridge of the final internment hulk, there to banish Bahamut once and for all. Yet though the end of your arduous journey is in sight, doubt not but that the cornered primal will lash out with his unbridled rage. If you are to overcome this terrible foe, you and yours must be of one purpose. Join now your hearts and minds, and sally forth to bring the Seventh Umbral Era to its true conclusion─for the future of Eorzea!

— In-game description

The Final Coil of Bahamut - Turn 4 is a level 50 raid introduced in patch 2.4. The raid is also known as T13.

It was first defeated by the Free Company Lucrezia on the server Alexander on November 2nd, 2014.



Aggressive difficulty r6.png Bahamut Prime

This fight is all about reacting to mechanics that repeat in each phase and mitigating heavy-hitting attacks. This fight has a hard 14 minute enrage so players need to handle the fight as quickly as possible. The boss doesn't have very complex attacks so learning them well will be the key to success.

Before the fight begins players need to set a marker somewhere in the arena to denote where players with a specific marker will stack to split damage.

Once the boss is engaged, the edge around the arena becomes an instant-kill upon

Phase 1: 100%-76%

To begin the fight players should pull the boss to the south wall of the arena.

  • Flare Breath: A large frontal cleave on the primary target. Be sure to turn the boss away from the party for this. This attack is usually paired with other attacks.
  • Megaflare: 3-4 players are marked with ground AoEs. 3-4 other players will be hit with a splash damage AoE, and 2-4 players are marked for a beam that must be split by other marked players to mitigate the damage. Players with a marker should stack at the predetermined location. The boss will follow this with a Flare Breath.
  • Flatten: A heavy damage tankbuster. Requires mitigation to survive.
  • Earth Shaker: Two players are tethered to the boss and marked with brown tethers. After a short delay, the tethered players will have a line fired at them that hits anything between them. The players will also drop three puddles each. To handle this, players who are tethered should move to the left and right of the boss and slowly move around the arena to avoid cleaving the party and drop the puddles around the edge. These puddles will persist for a while, so players should avoid standing in them.

This phase will repeat until the boss reaches 76% HP. players should push this phase as hard as possible to give more time later to handle other phases. It is also recommended that players use a DPS Limit Break level 1 to push the phase and also have a tank Limit Break level 3 for a later phase.

At 76% the boss will cast Gigaflare, an unavoidable room-wide attack. Mitigate and heal through the damage.

Phase 2: 76%-52%

  • Shadow of Meracydia: After the Gigaflare cast fades a Shadow of Meracydia spawns in the north of the arena. If it gets too close to the boss, they will link and begin buffing each other. If the boss was pulled to the south, the off tank can grab the add and keep it in the north to avoid this. The other Adds will also spawn away from the boss, minimizing the chances of them tethering together.
Players should focus on the add, as if it's not killed quickly, it will fire a line of puddles at a player, severely restricting how freely players can move.
  • Flare Star: At the same time the Shadow of Meracydia spawns, the boss will summon orbs to tether to players that move slowly at first, then will speed towards the player they are tethered to. If a player is hit by an orb, they will take damage and receive a stack of the debuff Suffocated Will. This debuff will deal more damage when applied based on how many stacks a player already has. Non-tank players should not receive more than 2 stacks, as the damage will be lethal after that. Communication is required between players to note who has orbs tethered to them and who needs someone to take their tether.
The boss will follow up with a Flatten, one cast of Flare Breath and Megaflare mechanics. This time however, the Megaflare will spawn a pillar from one of its AoEs, which will explode and wipe the raid if not dealt with. A single player must stand in the AoE and soak the damage instead, preventing the wipe.
  • Rage of Bahamut: Deals damage based on how many stacks of Suffocated Will a player has. Healers should be ready for raid-wide healing after this.

From here the phase repeats, an add will spawn in the southeast and west and the mechanics will keep repeating until the boss reaches 52% HP. At this time the boss will cast another Gigaflare and leave the arena.

Phase 3: Adds

  • Divebomb: Players should move to the center of the room immediately after the boss leaves the arena. It will appear at the edge of the arena and mark a random player with a red circle above their head. This indicates the boss will charge from where it is to the other side of the arena, passing through where the marked player was standing. A Storm of Meracydia will spawn at the edge as well and mark a player with a green marker, indicating the same thing. Once these markers go out, players know the boss and the add will charge through the center of the arena in a straight line, creating safe zones. Once the green marker comes up players can move to those safe zones to avoid the attack. Be aware that the paths of the attacks are rather wide, so move sufficiently into safe zones. The boss will follow this up with a Megaflare, thus it is important to not stack in the chaos of dodging the divebomb. It's wise to have half the players dodge the divebomb to the right and the other half to the left (of looking at Bahamut from the middle) to give space for each player to spread.
  • Adds will spawn after this, a Pain of Meracydia and a Blood of Meracydia. The off tank should pull the Pain to the west of the room, while the main tank grabs the Blood and the party quickly burns it down. The Blood of Meracydia will switch between a buff that mitigates physical damage and magic damage. Players should pay attention to which buff the boss has up and try to line bursts up with these buffs. The Pain of Meracydia has a strong cleave attack that needs to be pointed away from the party and uses Tail Swipe, attacking behind it. Avoid this by attacking from its side as much as possible and being careful with positionals.
  • Gusts of Meracydia will also spawn. The tank that grabbed the Blood should grab these, as if they get too close to the Pain, they will be absorbed, and it will receive HP back and a Damage up icon1.png Damage Up buff.
After the Pain and Blood are finished off, 2 Sins of Meracydia will spawn. These Adds hit hard and should be defeated quickly. Each tank should grab them and pull them into the center of the arena to be burned down by AoE attacks. At roughly 20 seconds after spawning, they will cast Evil Eye, an attack that deals damage equal to their remaining HP. Shortly after this another round of Divebombs from the boss and the Storm of Meracydia. These should be handled the same way as the previous attack.
  • Storm of Meracydia will spawn in the center of the room and should be pulled to the south of the room. The tank that does this will also grab the Gusts that spawn later. The other tank will pick up the rest of the Adds as they spawn and pull them over to where the Storm is to burn everything down efficiently. When the Pain respawns, keep it pulled away from the group until the Gusts are defeated. After the Storm is defeated, it will drop a Neurolink 2.0Puddle, which when stepped in greatly reduces damage dealt.
  • Teraflare: After enough time has past, Bahamut will appear on the northern side of the arena and slowly begin casting it's ultimate attack. To withstand it, players must be prepared to perform two actions. First, the Pain must be defeated before the cast finishes, as the Neurolink puddle debuffs with Flare Dampening, greatly mitigating the damage from this attack. Secondly, the tank should use a Limit Break 3 to further mitigate damage; a countdown will appear when 10 seconds remain, and the Limit Break should generally be used at 4 seconds remaining. Healers can also use shields.

After the party survives Teraflare, Bahamut will return to the arena and begin the final phase.

Phase 4: 52%-0%

The boss will use the attacks Flare Breath, Megaflare, Earthshaker, and Gigaflare in this phase, each with a slight change to their mechanics; see below for details. The boss also adds a new ability to its repertoire.

  • Akh Morn: A multi-hit tank buster. This attack also tethers to a player, and if they are in range of the blast, will split the damage of the attack. The off tank should pick this tether up and stand near the main tank for this attack. The first hit of Akh Morn will deal heavy damage, with each hit after dealing about half as much as the first. Every time the boss uses this attack, it will add an additional Akh Morn hit.
  • Megaflare: The attack mechanics will happen as normal, however this time up to 2 pillars will spawn, each needing a player to stand in them and soak the damage. Players will also be tethered randomly and hit by Tempest Wing, a twister that deals moderate damage. If anyone else is hit by this, they are knocked back, take damage and receive a heavy damage over time debuff. This attack can knock players into the edge of the arena, spelling instant death for anyone who touches it. The off and main tank should pick up these tethers and subsequently stand far enough to not hit each other with the twisters. This is so that the originally targeted players can stack for Megaflare if needed.
  • Earthshaker: This attack behaves as normal, however the boss will also tether the two players targeted with Earthshaker with Tempest Wing, causing twisters to spawn on them. Targeted players should not move into other players while the twister is active and healers should be ready to heal them. The boss also follows up with a Flare Breath immediately after. These mechanics will repeat from here.
After every two rounds of the above rotation, the boss will use Gigaflare, and immediately follow up with Akh Morn so be ready to move, mitigate and heal through this.

This repeats until the boss is either defeated or enrages. At its enrage, it casts a 15-second Gigaflare that will wipe the party.

Solo strategy

As of patch 6.0, the duty can be easily cleared solo by any well-geared level 90 character.

The boss fight consists of attacking the boss and the adds it spawns until they die. The only danger lies in the three phases in which the boss and its add charge through the arena; they must be carefully evaded or they will push the player out of the arena and to their death.


See also: Dreadwyrm Weapons

Gold Coffer (small).png Bahamut Prime

Treasure Coffer 1

Name Type Item Level Rarity Quantity
Paladins dreadwyrm arms (il 135) icon1.png  Paladin's Dreadwyrm Arms (IL 135) Other N/A CBlue 1
Dreadwyrm bardiche icon1.png  Dreadwyrm Bardiche Marauder's Arm 135 CBlue 1
Dreadwyrm claymore icon1.png  Dreadwyrm Claymore Dark Knight's Arm 135 CBlue 1
Dreadwyrm spear icon1.png  Dreadwyrm Spear Lancer's Arm 135 CBlue 1
Dreadwyrm claws icon1.png  Dreadwyrm Claws Pugilist's Arm 135 CBlue 1
Dreadwyrm katana icon1.png  Dreadwyrm Katana Samurai's Arm 135 CBlue 1
Dreadwyrm daggers icon1.png  Dreadwyrm Daggers Rogue's Arm 135 CBlue 1
Dreadwyrm longbow icon1.png  Dreadwyrm Longbow Archer's Arm 135 CBlue 1
Dreadwyrm handgonne icon1.png  Dreadwyrm Handgonne Machinist's Arm 135 CBlue 1
Dreadwyrm staff icon1.png  Dreadwyrm Staff Two-handed Thaumaturge's Arm 135 CBlue 1
Dreadwyrm grimoire icon1.png  Dreadwyrm Grimoire Arcanist's Grimoire 135 CBlue 1
Dreadwyrm rapier icon1.png  Dreadwyrm Rapier Red Mage's Arm 135 CBlue 1
Dreadwyrm cane icon1.png  Dreadwyrm Cane Two-handed Conjurer's Arm 135 CBlue 1
Dreadwyrm codex icon1.png  Dreadwyrm Codex Scholar's Arm 135 CBlue 1
Dreadwyrm torquetum icon1.png  Dreadwyrm Torquetum Astrologian's Arm 135 CBlue 1
Dreadwyrm weapon coffer (il 135) icon1.png  Dreadwyrm Weapon Coffer (IL 135) Other N/A ABasic 1

Treasure Coffer 2

Name Type Item Level Rarity Quantity
Dreadwyrm chest gear coffer (il 130) icon1.png  Dreadwyrm Chest Gear Coffer (IL 130) Other N/A ABasic 1
Neo aetherstone - body gear icon1.png  Neo Aetherstone - Body Gear Material N/A ABasic 1
Faded copy of answers icon1.png  Faded Copy of Answers Orchestrion Roll N/A ABasic 1


This duty is associated with the following achievements:

Name Points Task Reward Patch
Out of a bind i icon1.png  Out of a Bind I 5 Complete the Final Coil of Bahamut. Wind-up louisoix icon2.png  Wind-up Louisoix 2.4
Out of a bind ii icon1.png  Out of a Bind II 10 Complete the Final Coil of Bahamut 5 times. - 2.4
Out of a bind iii icon1.png  Out of a Bind III 20 Complete the Final Coil of Bahamut 10 times. - 2.4
Mightier than the dreadwyrm icon1.png  Mightier than the Dreadwyrm 5 Complete the Final Coil of Bahamut - Turn 4 with a party of only blue mages, Silence Echo turned on, and Unrestricted Party turned off. - 5.15


Intro Cutscene

Alisaie: 'Twas a long and arduous road, but at last we reach its end.
Alisaie: Farewell, Bahamut. I banish you back to the aether!
Alisaie: He is not yet whole! I did not think him capable...
Alphinaud: Ugh... Alisaie! ALISAIE!
Alisaie: I had thought it finally over...
Alisaie: We'll not survive another blast!
Alisaie: No... Is this how I honor my promise to Grandfather?
Lousioix: You must needs find your own reason to fight for this realm—your own meaning in this sea of chaos. Will you do that for me?
Alisaie: I will, Grandfather. In fact, I believe I already have.
Alisaie: That reason has been with me all along, guiding me—Eorzea's blade of Light, shearing through the endless shrouds of darkness...
Alisaie: I have been shown the miraculous feats of which we are all capable. Of which I am capable.
Alisaie: Bahamut! You have wreaked enough havoc!
Alisaie: I will not let your wrathful fires consume all that we know and love!
Alisaie: Ugh!
Alphinaud: How long I have waited to hear you say that! You have found your resolve at last!
Alphinaud: Let me join my strength to yours.
Alphinaud: In this place, in this moment, our purpose has become one!
Alphinaud and Alisaie: For the future of Eorzea!
Alisaie: This last task is yours, Warrior of Light! You must destroy Bahamut's crystal core!

Post-duty Cutscene

Alisaie: You did it!
Alisaie: But one task remains...
Alisaie: With this last coil disabled, there shall be naught left to bind Bahamut to this world. His beloved children will finally know peace...
Alisaie: 'Tis done. He is truly gone.
Alisaie: You knew, didn't you? You knew what Grandfather had become.
Alphinaud: I...was not certain. But from all I had gleaned, it seemed a distinct possibility.
Alphinaud: The scene people describe of the Battle of Cartenau was one of unimaginable devastation. And 'tis through the combined prayers of the desperate—and an abundant source of aether—that primals are born. I merely put two and two together.
Alisaie: And you consider that a sufficient explanation?
Alisaie: Well, however you stumbled across your theory, 'twas this revelation that made you wary of my attachment to Grandfather.
Alisaie: You feared that in my obsession, I would fall under his primal sway. Is that why you decided to join us? To pull me back should I show signs of wavering?
Alphinaud: Pray forgive me, Sister. I wished only to protect you. Yet I see now that I needn't have doubted the strength of your conviction.
Alphinaud: May I ask you a question? What do you now intend to do with the truth you have uncovered?
Alisaie: Which particular truth was that, Brother? The fact that desperate prayer gave rise to the primal Phoenix? That this new god was responsible for setting Eorzea on the path to rebirth?
Alisaie: Should such a tale become common knowledge, people would soon offer up their prayers in earnest—they would beseech Phoenix to complete the healing that was begun.
Alphinaud: Yet as you and I know all too well, the very act of calling forth this savior would do more harm to the land than good.
Alphinaud: We cannot encourage such worship for this very reason. Were Grandfather forced to return as an aether-draining primal, 'twould undo all that he had worked to protect.
Alphinaud: Your abiding love for him was the key that unlocked the truth of the Calamity.
Alphinaud: But keys may also serve to seal doors that were best left unopened.
Alphinaud: Let your love now guide your actions, and lock away deep inside the fate of both Grandfather and Bahamut.
Alisaie: Fear not, Alphinaud—I understand what must be done.
Alisaie: The realm need not know the truth for it to be saved.
Alisaie: That the elder primal is banished, to return to more...that is enough.
Alisaie: Let us make our way back to the surface. Poor Urianger must be beside himself with worry!