You cant in the wild but i think you can get a misdreavus in the lost tower after 8:00pm and evolve it.
Get a misdrevious in enterna forest,if you want mismagious use a dusk stone on misdreavious.
you have to trade it from pearl
Only in Pokemon pearl eterna forest- night, lost tower- night otherwise you'll have to trade
Eterna Forest (Only at night)
Go to Eterna Forest at night. Only available on Pokemon Pearl.
buy the Pokemon platinum book
The 151st Pokemon is Mew and is unobtainable in Pokemon Platinum.
no you can't find a torchic egg in Pokemon platinum
try your best to find spirtomb in Pokemon platinum
There is not a route 233 on Pokemon platinum.
You cannot find zekrom in pokemon platinum
you find them in the cave