Dragon is supereffactive adginst dragon
Empoleon in its 80's can beat everyone if knows the moves: Aqua Jet Drill peak :)
Get all badges and beat all elite 4's and champions
train your Pokemon. try to get their weakness. don't give up
Beat the elite four then Professor Elm will give you the S. S. ticket.
yes you are going to need the national dex just beat the Pokemon league to get it but be warned the Pokemon league is tough have lv 60's to beat it or 55's and a assload of recovery items.
Depends if you only beat him once when his Pokemon around level 50's go train on route 12+ because once you come back after covering these rountes his Pokemon are in the 70's. After you beat him a second time you can catch all the Pokemon, collect shinies, gather level 100's, and battle people on wifi.
Use Pikachu. (S)hes the best:)
battle as hard as you can Lavaridge town
When you successfully catch all Pokemon with an S rank and you beat all the missions and story mode.
Dark, Ghost and Bug types
You kill the elite 4's Pokemon and win and capture all the ledgendary Pokemon. And you win the whole game!!!!!!!!!!!!!!!!!!!!!!! Now bye bye!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
In Diamond and Pearl, Cynthia's party consists of Spiritomb, Roserade, Gastrodon, Lucario, Milotic and Garchomp, in order to beat Spiritomb you will have to use your most powerful attack since it doesn't have any weaknesses however for Roserade you can use Fire-type Pokemon such as Charmander, Charizard, Flareon, Moltres, Cyndaquil, Tepig and Emboar, Gastrodon you can use Grass-types such as Bulbasaur, Chikorita, Meganium, Hoppip, Jumpluff, Snivy, Vileplume and Oddish, with Lucario you can use Fire-types, you can use Electric-type Pokemon to beat Milotic and you can use Dragon and Ice-type Pokemon in order to beat Garchomp.