I know X/Y came out years ago, but it took me that long to beat the game myself. I'm sure that there are others who don't know what happened at the end of the game.Whatever happened to Lysandre at the end of X/Y?
Spoiler:Apparently Lysandre died in the blast that destroyed Team Flare's base. It's not confirmed or anything, but that's the guess the fandom came up with, since it takes a very special sort of person to survive an explosion and a building collapsing on you.