Frankly I thought this game is junk, Theres not much for strategy in it, you dont even really get to have choice as to the way the cards are played! Might as well just forget the whole battle sequence and give it a random number like rolling dice. Its all about the chance the cards will fall right.
Here is the related discussion: http://www.kongregate.com/forums/147-berserk-the-cataclysm/topics/261244-no-choice-of-cards-to-play