arceus he is the god of Pokemon all he has to do is use his splash plate use a water type and bye bye HO OH
Arceus obiously
well in my experience it would have to be arceus in Pokemon diamond. It took me an hour in the battle to weaken it without defeating it.
That would have to be the Pokemon Arceus
The same way you would level up any other Pokemon - put it into battle with other Pokemon, or use Rare Candies on it.
Arceus. No contest. Though it breaks my heart to admit that Giratina and Dialga would lose =/
It would be Arceus but since Arceus is not available yet in any game, it would have to be Dialga and Palkia.
There is no actual "strongest Pokemon", but if I had to decide it would be Arceus and Mew.
Well my guess would be Arceus.
You cannot get Hayley to get an Arceus in My Pokémon Ranch however you would be able to deposit one of your Arceus into your ranch.
Arceus, representing the poke-world, a pokemon god.
I would have to say Dialga or arceus
You would have to trade it from Diamond, Pearl or Platinum. There is no in game Arceus in Heart Gold or Soul Silver.