yes, you can catch ANY pokemon with a master ball, reshiram is who it is aimed at in white 2
the master ball is for zekrom in white and reshiram in black
From the professer in main story at plane town
you can trade a Pokemon from black or white holding a master ball.
Definitely Thundurus. You can get 2 Master Balls in Black and White. You should save the second one for shinies or event pokemon.
with master baLL
don't have the game
yes only one
In white you use the master ball in black you trade
you can get one from trading from someone else a pokemon that is HOLDING a master ball, or you can use cheats
only in Pokemon white by urself if u have master ball!
professor juniper gives it to you