If the planet of Hells Teeth suddenly appeared in the Star Wars Galaxy, how would the various factions react to that, especially if they know what is hidden on it
As context, this is what the Planet Hells Teeth is known for
>ULTIMATE POWER
>Clues to the location of the Omnicopaeia are uncovered upon Hell's Teeth, a Daemon world on the edge of the Maelstrom. The Omnicopaeia, an arcane device that contains every STC with a psychic component, is of immeasurrablle value. Many billions of Skitarii are dispatched to Hell's Teeth with all haste. The entire Adeptus Mechanicus is abuzz- should the legendary Omnicopaeia be found, they will finally have a way to control, precipitate, and even weaponise Humanity's psychic dawn
To put it in simpler terms, STCs are technological relics from Mankind's golden age of technology when they were at the height of their power. During this time, they had technology that not only allowed them to permanently delete reality, but also allowed them to fight in 4 dimensions. So yes, that meant fighting mankind at their height meant that you also were going to deal with time traveling murder bots. But one of the Key features from Mankind's Golden Age was the psychic tech that they made, as this psychic tech was not only among the most complex tech made throughout the entire 65+ million history of the setting, but is also among the most powerful. In fact, pretty much every WMAD from Mankind's Golden Age had a psychic component to it.
So scenario: Hell's Teeth shows up in the Star Wars galaxy. Immediately, every leader in the galaxy gets notified, and now knows what is hidden on it, and why it is important. Suddenly they get reports of Warp rifts forming near the edge of the galaxy. The Adeptus Mechanicus, having discovered extra galactic warp gates originally sealed off by the Emperor after the 8th extra-galactic expedition, re-activated them and have discovered Hell's Teeth. And they come Armed to the teeth. Specifically, they have the Many Billions of the Legionnes Skitarii ready to deploy on the Daemon world, and to claim the Omnicicopaeia no matter what. Assume that the Daemon world is also armed to the teeth, and that guarding Hell's Teeth is a Heretic Fleet. How would the Star Wars galaxy react? Would they try to claim the STC for themselves, or try their hardest to stop anyone from claiming it too? What would be the military response, if any?