>>55785661I went through my storage and picked out the things most in need of a mint.
Some are things that I use in teams often and just need a mint as a boost to a non-detrimental nature, like my shiny Butterfree, Pupitar, Typhlosion, Meganium, Glaceon, Kangaskhan, Dedenne.
There's a few Pokémon I do use that have detrimental natures that would be fixed with a mint, like my Blastoise, Charizard, Espeon, and Victreebel.
And then there's the few that would go from unusable to amazing with a mint, like my shiny Riolu, Raikou, Leafeon, and the Ralts.