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The only time that I used Togepi was when I was evolving one into Togetic and then breed another one, raised it to Togetic and evolved it with a stone to Togekiss. Never has been on my team. Me and Togepi's never got along because of the move Metronome
You get it by using a Shiny Stone on a Togetic. You can get a Shiny Stone from the Pokeathlon for 3000 points, which isnt too hard to attain, or from one of the trainers that you get their phone number from they call you and when you talk to them they give it to you~
In the Pokemon Manga, if you read up to the G/S/C chapter, Gold (The boy character - but VERY FIRST and original and A LOT cooler/funnier/awesumer XD) hatches the Togepi egg and never evolved it. It kind of reminds you Pokemon shouldn't be used for the "perfect team and at the final evoultion" but more of a "Hey these are my cool pokemon."