Hello, long time Shadowverse player just jumping into Evolve. Got a couple showdown deck to play with my friend and had fun so far.

I'm thinking to buy a booster box and my LGS still have some of the older ones lying around (BP02, BP04, and BP07). I looked at the card lists for those sets and there are cards I like from the mobile game in there. Are cards from those sets still used nowadays, or have they been power crept into obscurity?