This seems like an awesome idea and I love both TD games and Epic War so it makes it even better. The only problem is it would probably take a very long time to make and would require tons of work. You should be able to buy more cards as you progress in the game, and you should be able to upgrade your cards. What happens to the creatures with skills? Are they able to use it once or as many times as they want? Is there a recharge time for the skills?
