Liked it. Good for practicing. Took a while to understand the flow.
1. each player has 4 cards in their hand and 3 cards that are active for battle. each round you need to replace one battle card with one from your hand.
your hand will be replenished from the stack.
2. your opponent will go first to attack your battle cards.
3. your battle cards can attack your opponents battle cards.
to attack select up to three cards. the selected cards form a regexp. goal is to match as many characters from an opponents battle card as possible. then select the card you are attacking and the number of matching characters is the inflicted damage.