Definitely a very complicated game. For this kind of card game I think it is best for you to explain what I can do each turn (trading, in this case). Also, I think the timer tick can be simplify such that each action = 1 timer tick, maybe 1 trade = 1 timer tick, then the game play would be more simple and easy to learn.
Also, I love your art style, looks like something straight out of a freaky poker card set. Very nice. Good job!