A looser version of this is separating cards into tiers: bulk (commons and uncommons you dont care about), collection (cards youre keeping), and if youre grading, grading candidates (cards in good enough condition to potentially submit)
Apart from that, the Pokemon company also released a lot of significant expansions, which came with their own set of great chase cards
In practical terms, it's not really necessary for a color to be represented in a given format all that much - especially in older formats from when design was more primitive - but the idea is that it doesn't make any sense for a given color (or set of colors) to be consistently better than the others because you're just marginalizing a certain style of player for no real reason
Best Places to Sell Pokmon Cards in Bulk If you have a large amount of fairly generic cards that arent worth much, selling in bulk to an online reseller is the best option
"Blaine's Quiz Show" has a very simple premise the turn player sets a Pokmon face down
You can also follow a single product if you only want alerts for one specific Pokemon item