Anything with an event ribbon (e.g. every celebi and keldeo that was ever legally distributed) can't be traded via the GTS or wonder trade. Therefore, any Celebi/Keldeo/whatever that you see offered on the GTS is hacked.I'm sorry if this isn't the place for this question but when I go to the GTS on Alpha Sapphire there are people offering Celebis or Keldeos for other things (implying that they were able to deposit one). When I try to deposit a celebi it doesn't let me. Why can they deposit celebis while I can't?