Some older Magic sets feature double-faced cards, which have a Magic card face on each side rather than a Magic card face on one side and a Magic card back on the other. The rules for double-faced cards are changing slightly to account for the possibility that they are manifested. If a double-faced card is manifested, it will be put onto the battlefield face down. While face down, it can’t transform. If the front face of the card is a creature card, you can turn it face up by paying its mana cost. If you do, its front face will be up. A double-faced permanent on the battlefield still can’t be turned face down.