Great game! Love the art style: artistic, enjoyable, and yet a bit dark, too -- I think it fits with the theme of the game and music.
I have only done one round (just got run out of the cards). I like the fact that the outcome of a previous game is carried forward to the next game (sense of growth!)
Perhaps for me to be a bit more tactic, I wanted to keep the cards each time I use one, so that I can plan ahead how I play... But perhaps that's how it is meant to be(?)
Keep it up! I would love to see the finished game to come out on iOS :)