on victory road
there aren't any trainers who use a Rhydon in Pokemon platinum, but you can see a Rhydon on Route 228 ~ actually there is a trainer in Pokemon platinum who has a Rhydon and he is in victory road. when you are in victory road where you see all the water just go surf on the first one and then land where you see three lakes. once you are there go all the way right and you should see a trainer jogging up and down beside an item. battle him and he has a Rhydon in his party.~ How would people get to route 228 IF THEY WANTED TO FINISH THEIR SINNOH POKEDEX!!
On victory road you find wild Rhydon at about level 40. I don't remember where to find a trainer with one, but you could also battle a friend with one in the union room.
You need to evolve Rhydon. Rhydon evolves when you trade it when it holds a Protector. You find a Protector on Iron Island and Route 228. See related link on details on where to find Rhydon.
u see it in a battle
When looking at the item, it does say "a Pokemon loves this item". It is a hint to give a Pokemon that item. Well that Pokemon is a rhydon. Give a rhydon that item to hold. Trade it and see what happens...
Battle Team Galectic, you'll eventually see it.
battle everyone
most likely on battle island
No, there are different buildings in the Battle Frontier in Pokémon Platinum then there are in Pokémon Emerald. Here is a list of the buildings in the Battle Frontier in Pokémon Platinum: # Battle Factory # Battle Tower # Battle Castle # Battle Roulette # Battle Stage # Battle Shops As you can see, these are different from the buildings in Pokémon Emerald.
safari zone
The last gym leader has one
I believe you are talking about mew or mewtwo