Many cards in this set, including Emeral and Mana Nexus, let me add a card to my shields. How do I do that?
To add a card to your shields, put it face down at the end of your line of shields. You’re not allowed to try to confuse your opponent by mixing up your shields, so it should always be clear to both players which shields you’ve added. This is especially important if you or your opponent knows what the new shield is because of seeing it before you added it to your shields. It’s also important if either of you knows what any of your other shields are.
