First beat the elite four, then a new place called N's Castle will appear.
N will show up and talk to you. After that, Zekrom will appear and you MUST catch him to move on. If you defeat him you have to try again. I used a quick ball and caught him in one shot. You don't have to use your Master Ball. I would suggest saving that for Thundurus.
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Yes. You find zekrom in Pokemon white and the white Pokemon in Pokemon black.
Pokemon black by far. but if you have a choice between Pokemon black or Pokemon white get white. you can get more Pokemon in white than black , plus there is white forest and you can get rare Pokemon there i think
You cant. you can only send to pokemon white
Same place as white forest in Pokemon black... nowhere. Pokemon black has black city, Pokemon white has white forest.
Nowhere. you can find the Black city in pokemon black and White forest in pokemon white. YOu can't got to the white forest in pokemon black