>>31962638I personally would avoid using them, but that's just because I don't care too much for any of them in the first place.
Maybe you should avoid them as a signature pokemon of your lead character, but they'd be fine as a less significant member of their team.
Really though I'd agree with
>>31962713. It's your story, do what you want. If using a popular mary sue pokemon is enough to ruin your fic there was probably a lot more going wrong besides it.