Do you want to collect cards via online !!
This is pokemon trading card game online and you can play it for free if you are just like me that just want to collect or spend some good old times maybe you could try it !! I have played it recently because I really like card games and I enjoy it like other card game such as hearthstone.
You may want to try it it is free and can run at low end PC.
Link : https://www.pokemon.com/us/pokemon-tcg/play-online/