So, to quickly clarify: Creature cards in your mutated pile are just that in game terms: creature cards
There are more choices a keen eye might catch in the final decklist, but sound off with your thoughts in the comments below
So you could absolutely collect Gen I, without trying to collect the unimaginably expensive Base Set in which those 151 first featured
If you want to add a certain Charizard card to your collection but find it too expensive, consider searching for an ungraded one instead to see if that makes the price a bit more reasonable
With a PSA 9, its pretty much championship history you can hold, if youre ready to part with $72,000
There are a lot of good cards in this set, so I likely missed a few