Use a pokeball
Go to www.codejunkies.com or GameHacking.org
you can't
There is none.
No there is no cheat code for that but there is a Action replay code like that for diamond and peral.
you have to transfer it from Pokemon ranger and you receive it as an egg. Or you can use the action replay cheat.
Catch trainer Pokemon
you need a cheat that can catch a trainer's Pokemon to have lapras. because there is a trainer that has a lapras.
Here is the action replay codes for stealing trainer's pokemon: 9223B5FA 00002101 1223B5FA 00002100 D2000000 00000000 Have Fun!!
its a cheat
The Action Replay cheat code for cathing/stealing trainer's Pokemon Diamond/Pearl is Code: 9223b5fa 00002101 1223b5fa 00002100 d2000000 00000000
there is not a cheat to get all Pokemon but there is a cheat to get certain Pokemon
buy a action replay or cheat cartridge with Pokemon diamond on it
you need action replay
on Pokemon pearl and diamond get an action replay and use the Pokemon modifier cheat you can find the cheat and how to use it on this website on Pokemon pearl and diamond get an action replay and use the Pokemon modifier cheat you can find the cheat and how to use it on this website
A Pokedex cheat
you have to buy an action replay, and use that to cheat. you can't cheat in-game.
no there is no cheat that helps you complete the trainer card.