Yeah, I regret selling New Super Mario Bros. and Mario Kart DS myself
I'm really glad I never sold my pokemon games though, although there are a lot of other ones I regret selling. :/
I've never really had a team that had a good strategy to it, it's mainly just made of ones that I saw had good stats.
But I am going to add a Dusknoir to try and deal with Scizor's, as I have nothing good to take those down. The other day I was going to start breeding for a Careful natured one, but after looking through almost 2 boxes full of dittos, none of them were Careful nature. >_<
And then when I went to catch some hoping for the right Nature, I remembered that I had sold most of my good pokeballs to buy stat-boosting items. >_<
Yeah, that was my first match in 2 years. I sold me DS and games back then, and I had some extra money these couple of months, so I picked them back up. I remembered how to EV train and stuff (although it is soooo annoying to do that after you haven't in a while).