So I've been playing the hack for a while now, and I reached Blaine in Phenac. When I first fought him, he had a shiny Shadow Gengar. But my game crashed before I saved it, securing the shiny Gengar, and now that I've been redoing the fights, it's no longer a shiny Pokemon. I was wondering what the odds were for finding shiny Shadow Pokemon. I'll hunt for it if I have to, even though I REALLY don't feel like doing it.
EDIT: A friend of mine showed me that I was on an outdated version, so I guess it doesn't matter much anyhow.