I'm still a fan of there being a bigger threat that Azem had to fight during the Zodiark/Hydaelyn fight ending in the Sundering. Something akin to FF7's Weapons, which were originally beings created by the planet itself to fight Jenova, except this one was likely on the lines of Omega Weapon (unlikely since we already have Omega), but more likely Zirconiade. For those who don't know Before Crisis: FF7, Zirconiade was an ultimate summon also known as the "World Burner", which essentially was a "reset button" that would annihilate all life to return it to the Lifestream allowing the planet to heal itself before starting over with new life. A summon so powerful that the planet itself had created another Weapon (Jade Weapon) to destroy it should it need to.