See every Pokemon in the Sinnoh Dex and beat the Elite 4
The Elite 4 provides many Pokemon to see for the Sinnoh Dex
that no one else has.
Good tip (Dont skip trainer battles. Although they are annoying,
they carry most of the Sinnoh Dex Pokemon)
The first Pokemon in the national pokedex is a bulbasaur
shear pillar but you need the natinal pokedex sorry if i spelled stuff wrong
you can foud ivsaur in Pokemon diamon in route 225 for your natinal pokedex
mostly trading
get a bubasour
first get natinal pokedex. then put in a gba game into your ds.turn your ds off when you start go to migrate then go to pal park and catch them
well i am not sure but i think if you go to prof.oak i think he will give you the 3 starters from from his region. PS i forgot his region
484-500
The Pokemon Mothim is number 47 in the pokedex(will be different in the natinal pokedex.Hope it helped:)
You need to see all 210 Pokémon in the Sinnoh Dex. Once you do, talk to Rowan and Oak will come in and give you the National Dex upgrade.
i finished the pokedex bayleef is not on it for platinum
there is no number 211 in platinum pokedex. no. 211 in national pokedex is Quilfish.