you can find reshiram in the center of unova when you complete the national pokedex
Tornadus is 641st in the Pokedex.
There are 300 Pokemon in the Pokemon Black 2 and White 2 Unova Pokedex.
The National Pokedex of Black or White.
All you have to do is fill the Pokedex completeley. There are some pokemon which you will have to trade from white but you can do it.
Complete the game and then go to Prof. Junipers Lab.
Since Victini is numbered #000 in the Unova pokedex, I'd say yes, you need or see Victini in order to complete the pokedex
Keep battling people, trade!
You get a diploma message for each, nothing much but completing the entire National Dex isn't something that you can do overnight
you can find reshiram in the center of unova when you complete the national pokedex
Tornadus is 641st in the Pokedex.
There are 300 Pokemon in the Pokemon Black 2 and White 2 Unova Pokedex.
The National Pokedex of Black or White.
You can't. But you can figure it out by looking at it's pokedex# and what other pokemon are near it in the pokedex.
terrakion
It is Mismagius.
All Pokemon main series games share one national pokedex.