Your thumbnail is really cool. The images in the game are a little blurry and fuzzy, probably because it's interpolating them from a lower resolution. You should see if you can get it to render with nearest-neighbor or true pixel upscaling or something. Aside from that, the art is really high-quality. I don't play a lot of card or strategy games, so I don't think I really understood all of the nuance of what was going on. It would be nice to have a tutorial level or something to ease into. I like how events in one tile can affect the environment of another.
Also, Godot FTW!