シャドウ オブ ザ ラビリンス

All your Characters, during that turn, gain the following ability. 『【A】 ［②］ This ability can only be activated once each turn. When this card's battle opponent becomes REVERSE, you may pay the cost. If you did, place that battle opponent into Memory, choose this card and 1 Character in your Back Row, exchange them.』 （The card's state of position does not change）