First question is, why to release a game that is so frustrating to play? The user experience is a very important part of the game's success.
The turn timer should be set according with the player's action, this means, the timer should be 60 seconds, but if the player plays a card it should be reset. After the attack we should have the timer again. It is almost impossible to play this correctly because of this. The timer is not paused with the animations...
The drag and drop of the cards is awful!! Sometimes I lost my turn only trying to drag and drop.
The phone buttons are not deactivated with the game. Some times I am trying to play a card and the menu is displayed what makes the game to stop and I loose one turn or more to go back to the game.