I know nothing about Pokémon; it completely skipped me somehow growing up in the 90s. Now, my nephew is asking for Pokémon card packs for Christmas. I looked on Amazon, since I’ll need to ship anyway, but was royally confused by colors and boosters and foils.
He has like a dozen cards now, but wants more to play with friends at school.
What the hell am I supposed to be looking for?
Ask if he has a deck that he plays with.
If he does, get him some booster packs. Any recent set should do.
If he doesn’t, ask him what Pokemon or Pokemon type he likes. With that knowledge, buy him a preconstructed deck with those Pokemon in it.