I think a carefree mode where the difficulty doesn't increase or can be manually increased each round could be nice.
There are many jokers or good cards I just don't have time to build/afford before the difficulty goes up to much or it's "too late" and I'm at the final boss.
Of course nothing can be won/unlocked in this mode but it would be a training ground to try new combination, jokers deck and such.
Do y'all see what I mean? What do you think?