Originally Posted by ffxivconsolegameswiki
The boss will begin with four large pillars dropping at the cardinals of the arena and dealing proximity damage. Players should stack in the center to shield and heal through this. The boss will summon 6 Magitek Bits around the arena. They will begin slow-casting Self Destruct which will wipe the party. These can only be defeated in time by using the level three caster Limit Break. This should only be used by the caster with the Beyond Limits buff. After using this, the Limit Gauge will refill. Players should also be attacking the bits to ensure the Limit Break kills them all. After they are destroyed, Lahabrea will spawn and immediately cast Blight, which will reduce all players HP to 1, inflict Doom which lasts for 8 seconds, and Down for the Count, which lasts for 4 seconds. The only way to survive this is by using the healer level 3 Limit Break. Again, make sure the healer with Beyond Limits uses the Limit Break. The boss will become targetable and begin casting Dark IV, which will hit for max damage. Use the level 3 melee Limit Break to defeat him while other players attack the boss to ensure it dies. After Lahabrea is defeated, The Ultima Weapon will spawn and cast Ultima, an attack that must be mitigated via shields, cooldowns, and a level 3 tank Limit Break.