Quote Originally Posted by Empyrean View Post
The last time that Bahamut was sealed away, Eorzea had the help of Midgarsormr. If you'll notice, the sealing ALMOST worked. No doubt when the sigils of the Twelve fully raised the sealing would have been complete, but Midgarsormr sacrificed itself to fend of the initial Garlean invasion. Midgarsormr would likely have tipped the scales this time as well.
Where in the storyline/lore was this mentioned? I don't think we even know which race the Midgarsomr belongs.