You don't need one, you just need to get the Vs. Seeker. You get that from Dawn after you beat the Eterna City gym and you're going to go through Mt. Coronet to Hearthome City. Choose the right hand and you'll get the Vs. Seeker.
battle trainers or catch the Pokemon
beat 50 trainers
there are some trainers who have bulbasurs at the battle frontier.
No trainers have Manaphy. You get it by wifi event or pokemon ranger.
fill your pokedex and battle more trainers
First you have to get the action replay. But both action replays can ONLY connect to Pokemon Pearl, Diamond, and platinum. So if you want to connect to Soul Silver there is a place to add it. You can add all Pokemon games. So to catch trainers Pokemon you need the action replay. Then go to a trainer who you never met then he will battle you. After try to use the right ball to catch the Pokemon. Then automatically the battle will stop. That is how you catch trainer's in Diamond/Pearl/Platinum or any other. Bye for now. And your welcome for my answer.
If you want to battle Palmer,you need to battle 21 trainers If you want to beat Thorton,you need to battle also,21 trainers If you want to battle Dahilia,battle 21 trainers(also!) If you want to battle Darach ad Lady Caithlin,battle 21 trainers But if you want to battle the battle hall brain,(do not know the name) you will need to battle 51 Pokemon (not trainers)each trainer has 1 Pokemon. Hope I helped!
This is the code to rebattle trainers for the action replay. It has been tested and it works fine. You must hold R as you press A on the trainer to battle. Rebattle Trainers [Hold R] 0203FC70 F7FF1C20 94000130 FEFF0000 0203FC70 E0002000 D2000000 00000000
http://solarisleague.pokemonlegend.net/forum.htm go on this if u want to battle great trainers
Well this is one way you will need two Nintendo ds's and a platinm and diamond or pearl or platinum, just get a starter Pokemon in diamond in pearl or diamond and trade it into platinum, repeat this until you have all starters! If you have an action replay though, You can go to trainers who have the Pokemon, battle them, then capture their Pokemon!
Yes because if you don't win, you don't move on.
you have to beat all 7 trainers in all 5 buildings