For your first game and for game jam this is very large and complicated, AI with goals and a lot of stuff going on, amazing job. A few critiques:
* separate card rules text and flavor text (usually small text with italics).
* Sound effects and ambient music goes a long way
* Make it much more clear what is being traded (moving cards to the center maybe?)
* It wasn't clear what the card types were I never felt like I saw a setback?
I really like the concept of the game and I think you should develop it further.
I would like to give the game another try but I couldn't figure out how to advanced after my first trade I had the sand tribute card and 3 sand, but nothing happened, I tried trading a few more times, but still nothing. Did I have to do 3x24 trades just to advance? that seems like a lot of bogus trades once you have the cards you need to advance.