Scyther can be found (rarely) on Route 229.
You need to find a Metal Coat, give it to Scyther, and Trade. Then trade back.
outbreak
There are many Pokemon that can learn false swipe: Scyther, Marowak and many more.
You have to make the following Pokemon hold the metal cloak and then trade them: Onix = Steelix Scyther = Scizor
You can not find or get manaphy on Pokemon diamond but you can by hacking, trading or... if you have Pokemon ranger you have to complete the manaphy mission and then you can put it onto diamond.
Scyther can be found, albeit rarely, on Route 229.
you have to trade it
In Route 229.
scyther gallade
You cannot find a scyther in Pokemon white
You'll need to trade from Pokemon Diamond, or migrate it from the Gameboy Advance games to the Pal Park.
You need to find a Metal Coat, give it to Scyther, and Trade. Then trade back.
You can find him and more rare bug type Pokemon on route 229 next to Resort Area after you get National Dex.
Keep checking on tv or in sandgem town with that litttle girl in the house on the bottom left
You can catch Scythed on route 229.
Trade a Scyther holding Metal Coat.
Metal Coat