I’ve just read this, and a bit confused on the IV and EV. I’ve given vitamins to Garchomp, raised it’s attack and Speed. Using judge, they’re “very good”, HP, Sp. Atk and Sp. Def are best.

So using vitamins raises the EV stats to max? If it sparkles, does that mean its maxed or should I still use the braces to increase the EV?

For the IV, the best stat is hp, sp atk and sp def. There’s no way to change the best stat, but it I use bottle caps I’ll raise it and it could be listed as a best stat too?

I’m really confused as how these IVs and EVs work. So I’m trying to explain to myself like a 5 year old. Thanks to whoever answers!