Can someone help me with Guitar Distortion?

Your FX peddle just goes between your guitar and input on the amp, in other words plug your guitar into the Ped then the ped into the amp just as you would your guitar, so yes you need another cord just like the one you already have, as far as quality and price go you get what you pay for, I've seen overdrive/distortion peds as low as $39 bucks, and Multi FX for as low as $100, how much you wanna spend? and how long you want it to last?