I really like your art style. One of the jam games where pixel art is very stylish.
But unfortunately, my first experience with this game was not really pleasant. Generally, it feels like win goals you can get are not very balanced. At first, I got the "House 9 goblins" goal which was a lot to ask from the first attempt in my humble opinion. In the end, I've lost to the opponent after 20 minutes of the match not even getting close to the win condition. I wasn't even able to find enough goblin cards. Out of 9 required I managed to draw only four. Moreover, one of them was Goblin Merchant that I'm not sure what to do with. On the card, it's written that it can be housed anywhere, but I couldn't find a single cell where I could house it. It straight refuses to leave my hand xD
To be fair, on my second session I got a much more realistic goal - "Host a card on all 5 cells" or something like that - and the game went smoother, but some problems like not being able to put a card in a proper region persisted, unfortunately.
Anyways, this game certainly has potential! You guys seem like you know what you're doing and I wish you the best of luck with this project