The Heart of Sabik

[DragonSlayer45]

When Gaius says "Lahabrea, what have you done?", this makes me believe the Weapon did not previously come with the Heart and the Garlean's simply threw it in after excavating and repairing it without a second thought because Lahabrea said so.

[Anonymoose]

Garlemald didn't change much, by the looks of it

this makes me believe the Weapon did not previously come with the Heart

Both points relevant to some stuff I said in Thread: Ultima Weapon a little bit ago; it seems to me that much of Ultima Weapon was in disrepair, but Nero got it up and running again with a little help from Gaius' shady alliance with the Ascians. Praetorium shows that they have a pretty good supply of back-up parts with those legs busting out of the walls everywhere, and the outer shielding of the restored Ultima Weapon is reminiscent of The Black Wolf's personal armor. I do agree that Lahabrea provided the heart - and that it may not have been the first time he lent out some technology without fully explaining its purpose.

[Alberel]

Both points relevant to some stuff I said in Thread: Ultima Weapon a little bit ago; it seems to me that much of Ultima Weapon was in disrepair, but Nero got it up and running again with a little help from Gaius' shady alliance with the Ascians. Praetorium shows that they have a pretty good supply of back-up parts with those legs busting out of the walls everywhere, and the outer shielding of the restored Ultima Weapon is reminiscent of The Black Wolf's personal armor. I do agree that Lahabrea provided the heart - and that it may not have been the first time he lent out some technology without fully explaining its purpose.

Whilst the Garleans likely modified the Weapon a great deal in its repairs I'm quite certain the heart was there already. Lahabrea's reference to the Allagans being unable to understand it makes it pretty clear they were the ones who installed it, though yes likely with his help.

To be honest what I'm most curious about is how it serves the Ascians' goal of resurrecting/releasing Zodiark. The only thing I can think of is that it would weaken Hydaelyn by essentially stealing the aether to serve Zodiark instead of her. That or it will somehow weaken the barriers between Eorzea and the void, which is where I'm beginning to think Zodiark and the Ascians originate (especially given their propensity for summoning voidsent and the Ascian need to take hosts which is very similar to a voidsent in the THM quest line).

[Viridiana]

When Gaius says "Lahabrea, what have you done?", this makes me believe the Weapon did not previously come with the Heart and the Garlean's simply threw it in after excavating and repairing it without a second thought because Lahabrea said so.

I took it more as a "There's something odd going on here! What have you done?" I assume that Gaius can tell Lahabrea is taking control of the Weapon, and can probably even feel it preparing for Ultima. I also took Gaius's "This isn't what I wanted" after the final battle as a sign that he preferred a clean conquer to a messy destruction, and Ultima certainly doesn't fit into that plan.