How did Xande defeat the Dragon King, Bahamut?

[Rocl]

It's a bit unfair to pin Midgardsormr's "defeat" on the Agrius. I'd argue it almost assuredly has to do more with where the Agrius crashed and exploded than the fact it did. Silvertear Lake's seal and the font of all Aether is very important, and being enveloped in the shredding destablising aether should've done more than the ceruleum explosion. After all, the ceruleum explosion alone from the Agrius isn't what turned Mor Dhona into a wasteland--that was the combination of the mass amounts of aether being released and the ceruleum fire. I mean, that single act (Midgardsormr plunging the Agrius into Silvertear Lake) is so monumentally important and did so much damage that writing it off as "one Garlean battleship" is a bit disingenuous.

Which always brings up why did Midgardsormr crash a Garlean vessel into the very thing he was meant to protect? Find out next time in "why the hell don't you talk to me anymore you cute minion dragonsormr?"