I like the concept but sadly it gave me no incentive to ever pay attention to the cards or do anything but divide by the highest number. I think this would have needed always rounding up after dividing and also some kind of synergy between the calculations you made. And also I think it would have been better if you had to exactly hit zero, otherwise you really don't have to pay attention. But with all that beeing said: I would die for the little monsters they are incredible