Lead Designer Ben Brode explains how an online game differs a little from a physical one in this regard: “Consistency is wildly important in physical card games. Because in a physical card game the only clue you have as to how a card works is the text that is on it. So if the card doesn’t do what it says, you just can’t play the game. You would need a judge following you around, telling you what to do. In a digital card game there is basically a judge following you around, telling you what to do.”
Check out the full dev video blog on the subject after the break.