The best pokeball to catch victini in white/black is the ultra ball or the great ball
you shouldn't use the master ball.
ultra ball
a quick ball
The best Poke Ball to use on any legendary Pokemon is usually the Master Ball.
the best ball you could use is a master ball because it straight away catches it.
best ball is always a master ball but i would use a poke ball cause you meet at level 1 just teach faise swipe to a Pokemon use it and use a couple poke balls
the ultra ball is what i used to catch it...but you could use the master ball after you get it
The best ball to catch Deoxys is a Master Ball or a Timer Ball! Trust Me!!! Pokemon Master
you use 1 master ball if you use action replay or you can let a Pokemon and trade it with the master ball. Don't listen to the kid on the top.........you cant trade a Pokemon that's holding an item from Soul Silver or any of those games to the white or black version.
U can use a poke ball,mega ball,ultra ball but try it from the first when it appear with a quick ball it can catch it faster.
use a master ball
Use an ultra ball
you can use a master ball but poke-balls work too!