You will need to use the Action Replay and walk/run with the walk-through-walls cheat enabled to Flower Paradise, which is north of Seabreak Path. Shaymin can be encountered at the ending of Flower Paradise at level 30. You can also trade for it as well with a friend.
In Pokemon League
The Pokemon leag (derrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr) The Pokemon leag (derrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr)
There is are no certain Pokemon needed to defeat the elite four. Just use your strongest Pokemon.
TNT? Explosion? Well, Explosion is a TM you can get from the game corner, and Voltorb is famous for exploding randomly, though it isn't catchable before the Elite Four.
When you beat the elite 4 then bebe gives u an eevee
In diamond you beat the elite 4 and Cynthia and then fly to the entrance of the elite four.Instead of going in to the elite 4 door,go right.You will find a long grass and flower path.ride your bike till you reatch the end.then you find shaymin.
you need an action replay when you get there you will face shaymin at flower paradise
fishing at the waterfall just before the elite four with the super rod
In Pokemon League
in the grass maps. I found a shaymin sky there. But you have beat all the gyms and the elite four for each region.
no. You never get badges from the Elite four. You have to have them all in the region before you even face them. Hope I helped, :D
kill the elite 4 noob
-mongmong908
I don't know if this is correct but I will atill answer this question. If you are talking about going to the road were you meet Shaymin without action replay. Beat the elite four and then go inside victory road and go to the most right side. Before you beat the elite four, the road will be blocked but after you beat it, it won't be blocked.
You can find out how many times you have beaten the Elite Four in Pokemon Diamond by checking your PC in the game.
You can't unless you got another Pokemon game and defeat the elite four and then capture Shaymin. But that's a lot of work!
it is the elite four