Very cool battle system, it's new and I like it a lot! It was fairly intuitive too, but some additional hints on menu element mouseovers may be useful for new players. Card text for moving backwards refilling your energy could also help, it was the only part that I didn't fully figure out through experimentation.
I like the writing and dialogue, they set the right mood to the story. It was fun to learn more about the characters through dialogue exchanges in battle! The intro and outro text slowly appearing does feel cinematic, but I feel like there should be an option to click through it as an alternative.
The art is very good, and there is a lot of attention present in the custom menu elements. I like the dynamism with various dialogue exchanges and animations, I don't think that the card mechanics would feel as impactful without all of the visuals to match what you're doing. The sounds and music do a lot of work in setting the proper tone too!
It's always a pleasure to see such a complete and polished game in a jam! I'm glad that you had the chance to make the experience of playing it feel so complete!