I like the general game concept very much, and I feel that with more polish, this game could be a really fun strategy sim to play! The card concept is also adding an interesting spin to it, that I havent seen before!
My biggest problem with the game however was that I felt kind of lost and wasn't sure what exactly is happening right now. The tutorial in the beginning (though a bit quick) gave a good overlook over the general game mechanics you have, but the actual fighting felt somewhat confusing because I didn't know what exactly was going on and because of the turn time limit I didn't have enough time to parse all that so quickly. I feel like this could already be helped if you just included the fighting screen into your tutorial as well! (After reading the explanation on your itch page it's getting somewhat more clear what is happening though!)
The theme is incorporated very well! :)