The first time I fought East, he had a shiny Noivern. Quite irksome

Yeah I remember on like my first file I encountered some random trainer, on the route with the satellite tower, who had a shiny Auroraus and I was so jelly

There is a popular Nuzlocke Youtuber called TyranitarTube.
He vidded this game a few years back and his Whirl Islands Audrey had a shiny Lantern.
I’m in Hakate Town and haven’t encountered a single shiny either in a trainer battle or the wild.