Waker Lv 4 (Available if there are 4 or more face-up [Waker] in your Dynamis.)[Boot]<Valid> Square <Cost><Effect> You may choose 1 Cost 5 or less Z/X in your hand, and make it appear on Normal Square without Z/X in Reboot State. Remove that Z/X from game at the end of turn. This ability can only be played in your turn, and only once per turn.