Yes, you need the event celebi. You can trade a zorua by GTS
you can get a hacked version at thepiratebay.se
There are already cheats!
Imposible.............. Possible with cheats but, you can get it in pokemon black and white 2
trade with someone from pokemon black
yes
You can't. If you want infinite of any item, you're gonna need cheats.
There's no cheats to evolve Pokemon that requires trading.
Don't worry there will be.
You can use AR (action replay) cheats with the AR for the DS.
amazon
there are not very many pokemon black and white action replay codes.