Fun, cute little game! Definitely one of the best "easy to learn, hard to master" ones I've played during this jam. I liked the fact that you didn't show off all of the cards at the beginning and let players unlock abilities as they progress, it's a very good move when making games. The visuals are also amazing, pixel-art really fits the retro type of game. I'll definitely come back later to beat a couple of more stages.
Keep up the good work!