you cant catch it in gold if its a boy you can catch it in blue if its a girl you can catch it in purple
you cheat
You cant.
You can't catch dusknoir to get one trade dusclops.
you have to get it @ the beginning of the gave
The only way is the Pal Park.
You can catch Seviper in the Marshland area of the Johto Safari Zone.
You can find Seviper in Diamond, but you'll need Pokémon Sapphire as well. If you put Sapphire in the GBA slot, you can find Seviper at routes 208 and 210. It's rare and will be level 26 at route 210 and level 18 at route 208.
you can't catch seviper on Pokemon ruby (Pokemon sapphire only)
You need to trade seviper to firered from sapphire.
I need to use the bathroom
You can catch Seviper in Ruby, Sapphire, Emerald, HeartGold (IV), SoulSilver (IV), Black and White.
You can only get seviper by using the action replay cheat code or trading it from diamond, pearl or even platinum.
In Sapphire and Emerald, you can find Seviper at Route 114. In Diamond, Pearl, and Platinum, Route 208(Sapphire has to be in the GBA slot.).
You don't, so sorry and you wont get on in there but if you do...
Route 208 with sapphire inserted into your ds
season 7 ep 9