Get the National Pokedex by seeing every Pokemon in the Sinnoh Pokedex
No, you do not have to beat the Elite 4 to get the National Dex in Pokémon Diamond.
catch legendary Pokemon like giratina and heatran
beat the elite 4 dips hit
beaten down by close combat!
you have to beat the elite 4
You have to see all the Pokemon in Shinnoh. (You do not have to beat the Elite 4)
When you beat the elite 4 then bebe gives u an eevee
snow point city
you get it after you beat the elite 4 go to the desert and catch one.
Beat The Elite 4
you have to beat the elite 4 and go back to turn back cave where giritina is in Pokemon diamond or pearl. and its next to a portal. you have to beat the elite 4 and go back to turn back cave where giritina is in Pokemon diamond or pearl. and its next to a portal. you have to beat the elite 4 and go back to turn back cave where giritina is in Pokemon diamond or pearl. and its next to a portal.
I beat the league on Pokemon Diamond version, and there was no cave involved, if that's what you were asking.