Yes the mass injector has been removed. To use it, you'll need to use an older version of PKSM/Event Assistant. As for the WonderCards, I'm not sure which game you're referring to. Gen 7 only has 8 pages because there haven't been that many events in Gen 7. Open PKSM from a Gen 6 game and you'll see all the one's that were "missing". Previously, the Gen 6 wondercards were available to inject when loading a Gen 7 game, it has since been separated by the proper generation. Gen 6 has 25 pages of events, Gen 7 has 8 when they were combined it was obviously 33 pages so it seemed like tons but they aren't combined anymore.