Originally Posted by
BWYuko
This point I don't understand. The game goes to great lengths to explain what's happened.
Garland (the dark wizard/antagonist from FF1) attempted to use the most powerful magic spell, Fusion, to meld Terra with Gaia.
The Fusion only partially took, and therefore failed, stranding Garland, his Four Fiends, and the Terran souls in limbo between worlds.
Evidence of the failed Fusion is present all over the place. For example, entering the big doors in Esto Gaza only to find THE Gulug Volcano from FF1 inside is meant to be a huge "reveal" to veteran FF players -- surprising evidence of the failed Fusion. "This is the bonafide Gulug from FF1, not a re-creation. How in the shit did it get here?"
After his failure, Garland was too old and weak to continue his work, so he created an automaton version of himself to harness his own soul and carry on his legacy: the dark armored fellow we know as the Garland of FF9, who continues to shepherd the Terran souls. After his success This FF9 Garland automaton created the Genomes; the most powerful Genome in turn created the Black Mages. Playing god is a big theme in this game.
Necron comes fuck-all out of nowhere, though. No one will ever justify his last-minute inclusion. Will always be the best and proverbial example in gaming of a deus ex "Who the fuck are you and why are we suddenly fighting?" final boss.