Make sure your Pokemon are a few levels higher than the Gym Leader's Pokemon.
You get Reshiram at N's castle after you defeat the elite four.
go to poke pH lab (on the way to black city or white forest) after you defeat n in his castle
Nope, N won't show up again after you beat him in his Castle in Pokémon Black or White.
You will encounter N many times in Pokemon Black & White.
you have to have Pokemon white but if you have black you need to trade from someone with white. you need to have completed the Pokemon league then you catch zecrom then you battle N who has Reshiram then when you defeat him you have to battle ghetsis.
After you defeat N and Ghetsis, go to Undella Town and a girl will give you the HM Dive.
it is 1 of the 3 legendary birds from Kanto and is not on Pokemon black or white ALTHOUGH if you caught it on any older game you could transfer it using poketransfer after you defeat N.
N goes to a deferent Pokemon region to try to not be like he was.
In pokemon black you can get it at N's caslte
with Pokemon
there is no "white" legendary in pokemon white. its black ( and called zecrom) and in the top floor of N's castle and then after u VS N
You can't find him anywhere after the end