I tried out your game today and found It's a good experiment. The card battle element reminds me of the Megaman Card game which came out years ago on Gameboy Advance. It was a treasure for the console which I don't think ever came back :(

I did find with your game, that the game-play can be a little bit confusing.  Sometimes I wasn't sure how I won a round .I think what could improve that is by having some dialogues come up. If you choose to move away from the opponent, then a dialogue would read; Player 1 is moving away. What will Player 2 decide? Player 2 is now defending? From a live streamers point of view also that would mean anyone watching half way through a round would then be able to understand what is going on if they don't know the game at all. 

I hope that's some good enough advice,  I'm sure tying in some dialogues would be worth a go to give a player the understanding of what's going on, and also build depth in to the game-play. :)