It takes some time to understand the game as you need to really understand the cards. I cannot say if it is well balance or you just want to depend on luck.
Few things that made me get lost:
- I am not sure who turn is
- When you use the card you put it by the deck, but sometimes I got the feeling that nothing happened. I felt like it was a bug
- When you said to select a player for some card effect, something appeared in the middle of the screen. I was clicking on the player position rather than that "dialog" on the center.
Overall I feel it has potential for a commercial game! Congratulations!