When Oberon revealed his true form and unleashed his Noble Phantasm.
Transforming into the hollow insect that would destroy Britain—the demonic dragon Vortigern—he opened his mouth and esophagus, like a colossal blender, in an attempt to swallow the entire world and make it fall.
This Noble Phantasm was not meant for killing. It cast individuals or worlds into a dream realm utterly devoid of light.
Put simply, it threw them somewhere "outside this world"!
However, Oberon knew full well that he was not dealing with the world right now.
He only needed to turn the nature of this Noble Phantasm into an insect-dragon breath through magical energy and envelop the fairy city of Salisbury County before him!
The magical energy had finished gathering, and the Noble Phantasm was fully charged.
At his command, Oberon's Noble Phantasm tainted the breath of magical energy he exhaled.
Twisted and hideous, yet capable of plunging things into a dream world, the breath swept over the sky and earth of Salisbury County with lightning speed.
Meanwhile, Uchiha Yuzhen waited unhurriedly for a butterfly—or rather, a white furry moth—to shakily flutter behind him.
This was Blanca, the fairy princess of the Autumn Forest who had fallen in love with Oberon.
Seeing the fairy princess's trembling flight, which looked almost like convulsions—
Yuzhen understood that Oberon was truly giving it his all!
Relying on memories from his past life, along with the fragments of the future revealed by his Jōgan—
He knew very clearly that Oberon had truly triggered the Moss Rebellion.
Put bluntly, the Moss Rebellion was the eruption of the long-brewing curse within Fairy Britain.
And as the one who set off this curse, even if Oberon possessed power on the level of a chief god in the Type-Moon World, he would not come through