>>48892328>Stat reset berriesThat's only when you fuck up, and if you're starting on a fresh Pokemon it's hard to fuck up. I've never used them. If you're trying to make your in game team good just stop, it's faster and easier to start new.
>Vitaminsjust get Pokerus and an EV item. There are specific trainer rematches that give a EVs in each stat. Vitamins are only good for unique and specific spreads, and no one on /vp/ is good enough at the game to make their own custom spreads for specific purposes. Stick to 252/252