>>33701990The text talks about how the whole Ultra Space is made of rainbow-tinted glass, and that touching the growths on the ground feel weird and scaly.
Judging by the black + rainbow colors on the things on the side, it's definitely related to that "Motherbeast" form Nihilego takes, and probably Necrozma too. Considering all the Nihilego go berserk and the dimension itself starts to tremble after Lusamine is defeated, she may very well have captured the "queen" Nihilego or something. They all listened to her and mimicked her against Lillie despite not being captured, so they followed her will to some extent.
