Pokemon diamond help???????????????

Question

I beat the elite four now what?

Answer 1

You can get the nation pokedex by seeing every pokemon them go back to vitory road to the tunnel that was bocked it is near the exit

Answer 2

Now you can catch

Heatran: You can catch him at stark mountain

Giratina: You can catch it by taking the spring path ( Go south form Veistone city)

You could also play on wifi or trade with friends

Answer 3

You can do the battle tower. Catch Rigigigas(rigice rigirock and rigisteal needed) theres Shaymin, Giritina, Arceus, Cresilla, Manaphy,

and theres also national pokedex. You can get a free eevee from

bebe i think her names is. So don't stoop playing!AND! Mespreit azelf

and uxie