Well, I have recently started trading on the GTS, as I have bred a ton of spare Darumaka trying to get the Dream World ability. In addition, I have started this trading this week. However, when I went to Black City for the first time this month, most of the buildings were gone! The market was gone, many trainers were gone, and some of the skyscrapers were shorter. I thought the city changed when you went into the game sync or something, not trading online. What happened? Also, this can be the place to discuss Black City. On another note, when I first entered, I loved the city. It seemed to blatantly mock the materialism of modern culture, as well as having outrageously priced Pokeballs.