Having cards that manipulate draw or hand size or the option to shuffle and re-use non broken cards might have been cool, only so much time though.
Yeah, it was planned to have slay the spire-esque choices after levels like repairing a broken card vs gaining a new card, but with time limits that didn't end up being implemented for the jam release.
Also, at first, we intended the player's hand size to increase, whether from difficulty options or from game progress.
We had lots of ideas, and we are considering continuing the project now that the jam is over. No promise, though!
That's definitely something we've had in mind when making it. But it's as you say, it wasn't really feasible to implement in the time frame that we had. We worked really hard to implement as much as possible in as little time as possible. Deck/hand customization and variety would probably be next on our list among enemy types and more environments if given more time! Thank you for your feedback!! Much appreciated! And hope you enjoyed our game!