I rather like the drag-the-card interface--if you decide to change it, please allow the option to keep it. I found that it kept me from making the types of mistakes one-click and keyboard commands would cause. Also, I was thinking it would be cool if "omelette" added (current number of eggs collected) to the max HP rather than just a straight +3 and then the count of eggs collected could drop to zero; the "omelette" card could then only appear once (number of eggs collected)>1. Alternately, if the cards are "pre-drawn", the max HP bonus could just be (1+number of eggs collected). Any balance issues can be made with drops of a single gold piece.