In my Black 2 file, I already have the Shiny Charm but I still need Keldeo / Meloetta / Genesect and Manaphy. Since Wifi has closed, I can't obtain them but my friend have cheats for it and can caught them for me.
If I trade hacked Pokemons to my Black 2, what would happen? I have +20 shinies, Shiny and Oval Charm. It will delete all save data or make any problems? If I trade them, and if I delete them right away only for stay with them on the Pokedex, does it have any problems?
All others event Pokemons like Jirachi, Mew, my friend didn't use cheats for get them.