Kai20005

Hey, I need lots and lots of help. I'm wondering if there are ways to get old event pokemon that have already passed. It seems like there is a way to download an event pokemon from the event page of this website. I'm wondering if this is true how i can get it onto my game, and unfortunately you will have to explain it as if u were talking to a 5 year old child because I am in every way new to this event stuff and EV training and all that. So here is my cry for help: HELP!!