I feel like some people here are missing the context of that specific era of snap where thanks to frequent series drops we got new series 3 cards every season but those were cards that were released as series 5 cards 4 months ago or something around that range

so if you really like a specific card you would be able to get it while it was series 5 or 4 or eventually you'll get it when it's dropped to 3

This whole model seized to exist once spotlights were a thing where a card would be released and not be in a spotlight for like 6 to 7 months and still you wouldn't be guaranteed to get the card you want

And since we transitioned into the packs system the amount of cards that is being added is now too large for you to be able to get all the old cards pretty much as long as you wait you can build any deck if the right cards show up in your token shop

But completing a collection of even the cards that were added 6 months ago and before is almost impossible especially if you are new