To get the first master ball you must go to the final city before the Pokemon league, then Juniper will give you it. To get the second one, you need to get 50 Pokemon Ids , then talk to some guy in Castalia city and you will revive it.( use this to catch Kyuren).
Yes, you can get a master ball in Pokemon black. You get the master ball towards your last gym battle from Prof. Juniper =)
the master ball is for zekrom in white and reshiram in black
You can't!!
u can only get one master ball in Pokemon Black to my knowledge, unless u trade with someone whose Pokemon is holding a master ball, or if u hack it, which there is no hack to.
After you defeat the dragon type gym leader, go to the route to Pokemon league you will be stopped by the professor and she will give you the Master Ball.
you can trade a Pokemon from black or white holding a master ball.
professor juniper gives it to you
Yes, if you have a Pokemon hold a Master Ball and then trade the Pokemon, you will have transfered the Master Ball.
beat the Pokemon league and beat N and you use your Master Ball to catch him
you can get one from trading from someone else a pokemon that is HOLDING a master ball, or you can use cheats
In Pokemon black you can get only one master ball, heading to route 10 having all the badges Professor Juniper will stop you and she will give you one.
In white you use the master ball in black you trade