yes and to do so just see all the Pokemon in sinnoh to complete the sinnoh dex
No, there is not a Pokedex after the National Pokedex in Pokemon Diamond Version.
You need to get the National Pokedex first.
you need to have seen all the Pokemon in the regean first
Ash has 6 Pokemon in Diamond version
149 in the Sinnoh Pokédex. 493 in the National Pokédex.
First get the national dex then beat th elite4
Through events.
I dont have pokemon diamond
IN Pokemon platinum you find this Pokemon on route 201(after you get the national pokedex you put fire red version into your DS)and he will appear.Samething with Pokemon pearl and diamond.
Electrikes are a Pokemon that made its debut in the third generation of games. These Pokemon can be found in the Diamond version through swarm encounters in the Valley Windworks.
u can't get a lvX Pokemon in diamond version
you can get all the old fossil Pokemon underground after obtaining the national Dex. you can get cranidos only on diamond anytime and shieldon only on pearl anytime underground.