This game charms with its atmosphere from the very first moments - there's this mysterious, mystical vibe to the whole setting which is just lovely.
The way characters are written is also awesome; they have their distinctive personalities and morals, they feel real and are enjoyable to both read and interact with.
I like the reverse cards mechanic, especially once you get to the cards which can flip the cards next to them; creates nice combos potential and, well, combos are crucial in any roguelike~
If anything requires criticism here, it's UI - I got to the day 27 before dying and I managed to buy all of the... Permanent effects? I'm not sure how to call them. Anyway, when I had that many, I couldn't check what cards are in my deck anymore ;) Bigger amounts of redraws also didn't fit in the button space (any two-digit number caused that). So, if you decide to continue that project (which I'd love to see as I had fun playing) working on the UI should be on to-do list ;)
I also want to say that you did amazing work with the genre itself - roguelike is a brave choice for a game jam in my opinion; considering short development time, the balance is pretty nice in here, good job!