I've actually been waffling a bit internally about deciding whether or not to throw my two cents in since I saw this go up last night, but I figured that saying something is better than saying nothing at all.

Going to be honest: never actually got that invested in the anime at any point during its lifespan. I've also been playing sort of on-and-off offline at school and at locals (though, given where I live, it was basically play meta or bust), and that's also shaped how I both view and play the game (which I'm only now starting to get back into). With that said...

I actually really like the 'Sealed Only' and 'From Scratch' series that broke out around last year, so I don't really mind a sort of 'buy' system in any capacity. Places some general limits at the start, lets players see their decks grow... Yeah. Also, pulling a big card from a given set can really cause some excitement, cashing in big cards for more rolls, whatever works, works. Then again, I'm a sucker for opening packs, so... Yeah.

Regarding plot: I think it might be best to establish the existence of buying or not before pushing for this, because a Battle City sort of scenario does mean that players are rolling in with their top decks at the very beginning. Growth is, as a result, tied more towards character interaction, which feels a bit shallow when, as far as I know, pretty much every recurring character's deck has seen some sort of change as their journeys progress.

I'm not sure if my opinions should even be considered at this point (I'm literally staring at my decklists and archetypes right now trying to find something I could make work that wouldn't break everything), but... Yeah.