The official VGC is played in person. You have to travel to regionals on your own. Nationals and Worlds you can earn a trip if you place high in regionals, usually top 4. There are VGC tournaments which are played over wi-fi. They give you championship points, when having collected enough of them, let's you get into exclusive events like worlds. The official VGC is in person though. The Cutsap berry is for wi-fi, and if you want one, I think I have one in stock that I can give you to.