Look, feel, sound design and music, are extremely polished, really surprising at first glance looks like a finished game, gives a really strong first impression for a game jam game. Gameplay wise, i was a little confused at the start, but kind of got it after the first "PLAY". I kind of felt like i was guessing while selecting the cards, as there was not enough information for me to plan.
By itself is kind of hard to understand how the "structure" of the game works. After reading the explanation, it is more clear, and makes me even more curious in how a more complete/bigger version of this game would be. Its the kind of game i would love to make but i would not even know where to start XD.
Of course i didn't read anything before i play, because i 'am that kind of player. sorry
Nevertheless, i feel this game has lots of potential, it already feels extremely polished, if you ever decide to update it i will try it again. Easily one of the more promising entries i have played so far.