This is such a fun concept for a roguelike deckbuilder. I'm a fan of the genre and I've never seen one anything like this, this is so cool!
The bones of what's here demonstrates a nice proof of concept, and it's a lot to get done in a short time, complete with all the UI, art, and sound. I'd love to play this as a full game after you've had time to build out and balance out out the mechanics so that you can really deck-build and strategize.