[That would explain it. He pauses, thinking over the information he barely remembers.]

They were supposed to be protectors of the land, yeah. Something had corrupted them before our cycle began. I don't know the details, didn't ask, [Which he is now internally kicking himself over, by the way.] -but most were freed from their madness by the time I awoke in Aqures Ixen.

And yes, Bahamut was among them. Kalki corrupted him herself to buy her some time. Several of us didn't come back from that fight.