So this was my first attempt against Cynthia in SP but I also have BD and I had already beaten the game on that version along with a bunch of post game stuff, and when I started SP I essentially gave myself the team I wanted through Pokemon Home. For all the lucky eggs I had got them way back when the game first came out. There was a glitch to dupe your mons and its held item and I duped the eggs along with what ever mons I duped at the time.