After you beat all 16 gyms and get Rock Climb go back to cinnebar and climb up on the rubble. The magmarizer is up there.
You can find one on Cinnabar Island.
u need to treade it with a magmarizer
You dont
You must trade Magmar while holding the Magmarizer
Trade holding magmarizer
i do beleve that the magmarizer is on the island that blue is on in the second reagon.
Magmar in the Safari Zone then trade it while holding the magmarizer.
sorry you have to trade it to Pokemon soul silver
You cant, You can only get The "Magmarizer"Unfortunately, the only way to find an electrizer in Soul Silver is if you use the Pokewalker. I don't know the route or the number of steps to get it, but if you go on seribii.net then you can find out.
Soul silver is AWESOMENESS!! yes GET IT
With The Magmarizer You Can Evolve Magmar into a Magmortar.
According to Serebii.net there are 493 Pokemon in Soul Silver.