This seemed like a really ambitious game for sure! I've always wanted to do a board game in Godot but haven't scoped it out yet. I agree with some other commenters that the font was a bit tough to read at times and I was kind of confused on what I should try to do at first, so maybe some sort of tutorial or maybe an intro board where the characters only have 1 ability to start with to help players understand the rules and basic strategy might be nice.
I'm definitely bookmarking this game in case you update it to add the extra content you said you are planning.
Nice entry and good luck!