Currently, the Outer Wilds were a massive battleground. It wasn't just one or two battles that were taking place within the vast expanse of corrosion; practically the entire plains were covered in the flames of war.
On one of these battlefields particularly close to Avalon, two separate fronts were being occupied. On the ground, leagues of 3rd class existences fought to the last breath like common soldiers. Their numbers blotted out the earth, painting a sea of black and red.
In the sky, dozens of 4th class beings were engaging in their own battle. Now that war had completely broken out, these forces were not being spared any longer. And they were fighting with everything they had.
This massive battle created a swirl of rampant mana and blood that enveloped the area outside of Avalon.