#xb1

Fiora's soul and will being stored within the Origin Metal used to craft Lucky Seven is so cool to me for so many reasons:

With Aionios being a creation of Origin under the influence of Moebius, it's entire existence is thus directly under the influence of whoever is in control of Origin itself. The Origin supercomputer is based upon Ontos's core and architecture (which we know from Future Redeemed), making Ontos the prime administrator of Origin. Thus Ontos, and anyone tied to that core, carries special privileges within Aionios and Origin. (ex. Shulk carried the Monado in XB1, and the Monado IS Ontos. Rex's life was tied to the Pneuma core, one part of the Trinity Processor which was also under the jurisdiction of Ontos, A just straight up IS Ontos, etc.)

So Fiora, who ALSO was a Monado wielder (via her being Meyneth's vessel and Meyneth too having a Monado of her own as one of the two gods of the Xenoblade 1 world), too has an innate connection to Ontos and the Trinity Processor. Which is why Lucky Seven is so strong within Aionios. She (as the sword) is able to completely override Moebius's control; allowing her (the sword) to shatter the Flame Clocks, obliterate Moebius, and cut through literally anything within Aionios. Lucky Seven, which is Fiora, is essentially part of Ontos and thus can rewrite the "code" of Aionios (yes, Aionios isn't a digital world but that's the easiest way to explain how Origin and Aionios works.) That is such a cool way to explain the extreme strength of the blade.

Furthermore, it means that Fiora is still carrying on Meyneth's wish to give the people of the world a choice of how to live their lives. In Xenoblade 1, Meyneth's whole thing was acting as opposition to Zanza. She wished for an ever changing world in which its inhabitants could live and choose for themselves, whereas Zanza wished for a stagnant world bound by fate. He wanted complete and utter control over those who lived "beneath him", as he saw it. Fiora came to embody these desires and values of Meyneth after Meyneth's death at Mechonis Core, and idk it's just really cool to me that her influence on both the Xenoblade 1 party (especially Fiora) and the Xenoblade universe as a whole is still as strong as ever within Aionios.

Moebius is the embodiment of the fear of change in an unstable world. And after seizing control of Origin, Z created a world in which nothing changes and it's inhabitants serve as fuel to keep Moebius alive. Nothing within Aionios progresses. It persists for eternity, those living within stuck in an endless cycle of bloodshed and hatred.

So to have the one thing capable of combatting Moebius being a weapon that is the physical manifestation of the willpower and motivation of Fiora is just really cool to me, especially given how important Fiora and Meyneth are to Xenoblade 1 and how their entire thing in that game was giving the people of the world the ability to choose for themselves and defy fate. Fiora, as Lucky Seven, is giving the people of Aionios a real second chance at life unshackled by Moebius and their control. Just as Meyneth gave Fiora a second chance at life after Fiora was killed at the beginning of Xenoblade 1.

The way the lore, function, and theming of Lucky Seven is all tied together is good shit.

It also being why the sword is called "Lucky Seven" is very funny. (Fiora is Xenoblade 1's seventh party member, and she IS the sword.)