Slowpokes Evolution

Hello! As you may know, Slowpoke is a Really Rare Pokémon in the NDS Games. You can catch a Slowpoke on route 205 by using Pokéradar in Platinum. But in Heartgold And Soulsilver
you can catch it in the Slowpoke well. Have You Watched the Special Pokémon Episode?
If You want To Evolve a Slowpoke you can train it to LV.37 to Get a Slowbro Or Use a King's Rock and Trade it to evolve into a Slowing, as you can see in the image here!
Bye!