Missingno perhaps never heard of that in diamond and pearl
Misdreavus cannot be caught in Pokemon Diamond. It can be caught on Pokemon Pearl appearing in Eterna Forest and Lost Tower at nighttime.
Magikarp
Slowpoke cannot be caught in Pokemon Diamond. This Pokemon can be found on route 205 in Pokemon Pearl using the pokemon radar and traded to Diamond.
Oshawott can't be caught in Diamond.
noctowl and hoothoot
Cresselia
You have to have seen or caught every Pokemon in the game
no sorry it can only be caught in diamond
It should give you an option to after you catch it
You have to migrate it from Pokemon Ruby, Sapphire, Emerald, or any other Pokemon game that you happen to have a Torchic in. Torchic can't be caught in Pokemon Diamond or Pearl. Sorry. You have to migrate it from Pokemon Ruby, Sapphire, Emerald, or any other Pokemon game that you happen to have a Torchic in. Torchic can't be caught in Pokemon Diamond or Pearl. Sorry.
You have to migrate it from Pokemon FireRed, LeafGreen, or any other Pokemon game that you happen to have an Entei in. Entei can't be caught in Pokemon Diamond or Pearl. Sorry.
The Pokemon that can be caught without special events, trading, or cheating in Pokemon diamond are: Uxie Mesprit Azelf Dialga Giratina Heatran