professor juniper gives it to you
the master ball is for zekrom in white and reshiram in black
you can trade a Pokemon from black or white holding a master ball.
In white you use the master ball in black you trade
Yes, you can get a master ball in Pokemon black. You get the master ball towards your last gym battle from Prof. Juniper =)
Definitely Thundurus. You can get 2 Master Balls in Black and White. You should save the second one for shinies or event pokemon.
you can get one from trading from someone else a pokemon that is HOLDING a master ball, or you can use cheats
From the professer in main story at plane town
to get a 2nd master ball trade with 50 diffrent people and go see a man in black in the castela pokemon center
yes, you can catch ANY pokemon with a master ball, reshiram is who it is aimed at in white 2
Either catch it with the Master Ball you received in Pokémon White or trade it with someone over the GTS.
with master baLL
Surprisingly, yes. In Black and White, if you trade with people from fifty different countries, you receive a second Master Ball.