My friend told me that you can get another Master Ball, besides the one you get from the Prof. Is it real and if so how do you get it?
Yes, in Castelia City Pokemon Center. To obtain it, you have to trade with at least 50 different people to get that Master Ball. Hope this helps...
Yes, there is a second master ball. (in Pokemon Black and White)
You must do fifty GTS trades (and apparently ANY trades) and talk to someone to get one.
That's it! ~
You can either trade with 50 people or you can transfer Pokemon from other games via PokeTransfer. Then you talk to the man in the Castelia city Pokemon center!
you can also win it by raffle but the tradeing is a better chance