Quote Originally Posted by Dualblade View Post
If I'm correct one of the bigger reasons he went to Azy in the first place was because of the Warring Triad, IE a GIANT WELLSPRING OF AETHER to use from himself. The Ravana EX quest also mentions him wanting to take the Warring Triad's power/aether for himself for his conquest of Eorzea (and I think something about Bismark just wanting to eat them? Not sure there.)
It's mentioned even during the fight itself. Before the Knights of the Round phase, he tells Ascalon to "Drink deep of the power of slumbering gods," which I'm assuming was referring to the Warring Triad.