Thanks for adding a windows build! Played the game and really loved the concept, I think you have a pretty strong start for a real nice experience here :) Don't fell discouraged by the some of other comments, it's a game jam and I think you've done an exceptional job for your 3rd game jam.

Quick tips about Unity and screen size. Most of the time, you probably want to set Canvas Scaler's UI scale mode to be 'Scale with Screen Size'. This makes the entirely screen scale with the size of the screen itself (so that things will look right regardless of screen size. https://docs.unity3d.com/Packages/com.unity.ugui@1.0/manual/script-CanvasScaler....

I really love the goofy walking animation and the biting animation, it really added to the overall vibe of the game. I was a little confused at first about when I was able to bite people, but eventually got the hang of it. It would be super cool if different humans have different movement patterns making the game feel more like a puzzle game (e.g. red shirt humans walk in an L (like a knight in chess) while blue shirt human walks 2 tiles ahead). Then you could tweak the balance of the deck by doing something like giving players a bigger hand but only letting them play up to 3 cards or something similar. 

I was really surprised at the end when it went into first person camera, I think it's a nice touch :) Also loved the musical choices!