Please bring forth ALEXANDER!

[Jacost]

And the more damage you do to various internal structures along the way, the weaker the boss at the end will be? With the necessity of balancing it against a timer? It'll be like T2 was supposed to work.

In any case, Alexander is likely to appear in Heavensward, I think. He was a rival to Bahamut in FFIX, although he's probably an Allag god rather than anything associated with Ishgard. Heck, he might even be a deification of Emperor Xande, "Allag-Xande" as someone else pointed out.