You have to go east of eterna city.
at the end of the cave
you catch dialga in the spear pillar and get to snowpoint city
u have to catch the golden or yellow or orange graveler it should be next to him
you can't sorry.i transfer my emer__ to get the regis you can do the same with ruby and spafire sorry bout spelling
All you have to do is you do 7 gyms then come back and he/she has gone
Defeat Cyrus and others at the headquarters first.
before i tell you you need a Pokemon that knows rock climb and strength.you go to oreburgh city and take little sand thing and to the right you go in there. then as soon as you go in you surf across and rock climb the nearest wall thing. it is pretty much laid out after that
Pokemon diamond
Start at oreburgh city and then go up
it in mtcornet
Pokemon diamond Pokemon diamond Pokemon diamond
you cant be a Pokemon in Pokemon diamond