SS Cartridge, and I just didn't know because I dont have anyone to trade with, and those emulators dont usually run well in my PC lol, If I can only use one, it will probably be scizor anyways How else can I get a Steelix?.....ooooo wait cant you get one in that cave in Cianwood???? :D:D:D:D
Hey man, glad to see you're doing some challenges. quick note though. Are you doing your steel monotype on a SS cartridge or emulator? Cause you can get an Onix in Violet City (trade), so hacking in Onix and Scizor is not allowed per the rules of the challenge. Also when you can hack, only one pokemon. If you're using an emulator/flashcart, you can easily evolve Onix and Scyther with an Evoloution Editor or Pokesav, although I would wait until you can get a Metal Coat (steal em from Magnemite with Thief!).