According to Wizards: "Reversible cards are a cool new piece of Magic tech we're excited to debut here. It's a relatively straightforward concept, but it results in some awesome-looking cards. These are double-sided cards, but they have the same functional card on each side. However, each side has different art. You can swap which side you want to show off when casting the spell, or just stick with your favorite. You can even flip a coin to pick! It's just another way you can express yourself when playing the game."