So, took a look at this game!
//THIS WILL CONTAIN SPOILERS//
The pixel art looks really nice and the sounds used are effective! The sound effects fit very well and the background ambiance definitely gives a creepier feel to the game in general.
The card mechanic is really interesting. Being able to use them to interact with different environment objects is an interesting concept and I can see this being able to be very easily expanded upon. Imagine the possibilities a house with a lot more furniture could give you, for example!
One thing I noticed though is that, depending on the situation you're in, having to wait for the cards can be a little rough. I was in the 1st puzzle and had to wait to get a Fire card, but it took me around 4 rotations of cards for me to actually get a Fire card, which forced me to have to get out of that spiral labyrinth and use up one of my cards for space so that I could get into another card rotation.
Same thing goes for the boss. I died to it a few times since my light kept running out and I wasn't sure what to do, until I noticed that I could stack *that* card on those places. It took quite a while of waiting for me to get all the things that I needed. When I did it though, the boss got liquified, which was fun.
This mechanic is truly very interesting though, and I'd like to see it implemented in something without such a huge time constraint like the jam. There's definitely something strong here.
Overall, it was a nice and very interesting game. Good work!