Pokemon Black sav + other question?

Hi there. I would like a complete Pokemon Black sav file (EUR/USA) and I can only find the JPN ones. This is so I can trade in between my retail White and flashcart Black for version exclusives trade evos etc.Also, there's a guy that gives you a Master Ball if you trade 50 something. Is it 50 times or with 50 different people?Help is appreciated thank you.

Replying to #1

50 different trades, I believe.

u can use japan for E or U version

Gee, I got my master ball just after beating the dragon gym and I didn't even have to trade with anybody! ;v) It was one of those gifty things like the Professor when she gave us the lucky egg! ;v)