The Single Most powerful *thing* in FFXIV?

[MoofiaBossVal]

Midgardsomr ran away from Omega, and Omega was responsible for imprisoning Primal Bahamut.

Koryu was so powerful that even with 4 Auspices and the Warrior of Light, it was deemed preferable to seal him away rather than fight him.

So I'd place my bets on Omega and Koryu as the strongest beings in the setting (besides possibly Hydaelyn and Zodiark, though we have little context for how powerful they were).

[YianKutku]

Midgardsomr ran away from Omega, and Omega was responsible for imprisoning Primal Bahamut.

It's not clear whether Omega was clearly more powerful than Midgardsormr, back during the war on the Dragonstar. Omega admits that it had never defeated Midgardsormr before, but as you mentioned, Midgardsormr did travel all the way across the galaxy to Hydaelyn in order to not have to deal with Omega anymore.

And by the time we meet both Midgardsormr and Omega, they were both at a fraction of their original power. And even at that fraction of power, Omega still managed to seal away Primal Bahamut, or rather allow the Allagans to seal away Primal Bahamut while on basically Safe Mode.

Personally my impression is that if Midgardsormr and Omega were to fight at full power when they were at their peaks, it could go either way. And at this point, both are so tired and familiar with each other that they can only summon enough motivation to snark at each other.

[Vyrerus]

Omega admits that it had never defeated Midgardsormr before

Omega says that the contest ended prematurely, and it failed to bring down Midgardsormr(failed to kill or capture). It goes on to say that Midgardsormr would only accept a fight to the death. Meaning Middie was on the back leg when either he fled or they got interrupted. On the back leg enough that he gave up on his fury/honor for the good of what was left of the dragon race.

Also, in context of the fights, the fight with Omega, either format, is more difficult with more powerful attacks than Dragonstar Midgardsormr.

[YianKutku]

Omega says that the contest ended prematurely, and it failed to bring down Midgardsormr(failed to kill or capture). It goes on to say that Midgardsormr would only accept a fight to the death. Meaning Middie was on the back leg when either he fled or they got interrupted. On the back leg enough that he gave up on his fury/honor for the good of what was left of the dragon race.

Also, in context of the fights, the fight with Omega, either format, is more difficult with more powerful attacks than Dragonstar Midgardsormr.

I'm not sure how "Midgardsormr only fights to the death" and "the contest ended prematurely" meant "Midgardsormr was on the back leg". The impression I got was that Midgardsormr would choose to fight to the death against Omega and its creators, but if it's not a fight to the death Midgardsormr is seeking, then it would choose not to fight at all. Or at least choose to end the fight prematurely once Midgardsormr realized that win or lose, the battle would spend too much of his resources.

And Dragonstar Midgardsormr as fought in Alphascape was a creation of Omega itself to emulate what it believed to be Midgardsormr's full power, which has so many caveats and assumptions that I don't think we can use it as an objective measure. Omega itself admits that it has no idea what Midgardsormr in full Fight To The Death mode would be like, for power levels.

Personally I think that it also all depends on the type of contest. If it's a single decisive 1v1 battle, again I think it could go either way due to both Original Midgardsormr and Original Omega being about equal, but Omega might have a slight advantage. However, if it's simply "who will survive the other", I think Midgardsormr would outlast Omega, simply because Midgardsormr has shown the ability to recover from otherwise serious wounds, as seen with the Tales From The Shadow where he decides to protect humanity's resurgence into another Astral Era, while Omega in OMG is mostly just an observer.

So if we're talking about "Midgardsormr vs Omega right now", it again depends on when this "right now" is. During the events of the Omega raids, Omega is probably more powerful. During the Eighth Umbral Era, Midgardsormr is probably more powerful, possibly because he actually has permission from Hydaelyn to live on the planet.

[Vyrerus]

I'm not sure how "Midgardsormr only fights to the death."

What's left vague is how what, exactly, ended the contest prematurely. It could have been Midgardsormr rallying an attack that temporarily stunned Omega, leaving him room to flee. It could have been all of the other dragons still valiantly battling against the tide dogpiling Omega while imploring Midgardsormr to leave. It could have been Midgardsormr just suddenly leaving after his ultimate attack, Protostar, failed to even seriously damage Omega. Think about it, if Omega has the data to fully replicate that attack then he saw and analyzed that attack.

"From the heart of the eldest star doth weep the light of oblivion!" Oblivion in this context = Complete Annihilation/Extinction. This is the attack's intent against its target. Omega's presumption that he doesn't have all of the data on Midgardsormr comes from that fact that he doesn't explicitly know if this is Midgardsormr's most powerful attack, because he may also possess the qualities of a hero to exceed discernable limits when near death. In truth, some past forms of Shinryu(who FFXIV middie is based on in reality) in previous FFs have had access to Supernova as well, its form varying. So what we can gleam is pretty evident, we fought a version of Midgardsormr who, possibly, couldn't bring all of the real one's strength to bear. That's it, but given the context of his paired line to Protostar, I don't think the simulacrum was too far off.

Think about it like this. Omega can reproduce Midgardsormr in his prime, to a great extent. If he wanted to, he could make it corporeal, and unleash it into the world. He could do this with any of the bosses he made us fight. Midgardsormr never could.

All Omega needs to last is a new body, which it looks like might possibly happen in Endwalkers, given the benchmark. If Fandaniel has made a pseudo-Omega(I suspect Allagan-attempted reproductions) or several, Omega in the OMG could take one, and perhaps fight with us against him. It's likely a less powerful platform, still, but if Omega had access to resources and wasn't going to immediately get stopped, then he could probably rebuild himself too(given a platform capable of such).

In their most original forms in FFV, they're said to be tied for hardest superbosses, but actually Omega is much more difficult to kill, since all you really gotta do to beat Shinryu in FFV is equip rings that absorb water damage. Omega, you gotta bypass reflect with high damage, and kill him in just a few hits, else you get countered with missiles/being erased until you're dead. Funny enough, in FFXIV the story is that Omega pursues Midgardsormr, but the original relationship has Shinryu pursue Omega, heh.