you need 200 Pokemon to fill the whole pokedex
you need to find 210 Pokemon to complete the pokedex
you need 150 Pokemon to get the national pokedex
You need to collect every Pokemon in the National Pokedex - in other words, complete the Pokedex.
You do need the national pokedex for the Pokemon modifier. the Pokemon modifier uses the national pokedex numbes. you can not use the sinno pokedex.
On www.serebii.net, click on pokedex and search the Pokemon you want to see. All Pokemon need a different amount of steps. With the pokedex you can see that. You need to know what Pokemon it is!
All that you want, because you only need to defeat elite four to get nationaal pokedex.
In Pokemon Diamond and Pearl you need the National Pokedex to get Magnemite. In Pokemon Platinum you don't need the National Pokedex to get Magnemite.
I think you need to see them all.
well you need to have all your Pokemon in your pokedex and when you get your national pokedex you will get breed
You need to get the national pokedex to get national pokedex you need to get all the Pokemon and you need to talk to daun's sister
In D/P you need to have seen 150 Pokemon to get the National Pokedex and for Platinum you need to see 210 pokemon.
There are 493 Pokemon in the current National Pokedex.