Interesting concept and execution combining time countdown as a resource, was quite challenging overall. Nice art overall as well. One thing I would probably do is to have the cards color coded to their functions, like red for attack, blue for time or green to heal since the game is designed with time as a resource, having the player browsing the card quickly is nearly essential. As it is right now it takes quite a bit of time to sparse which cards do what - which does eat into the time.