Unresolved Feelings, Yotsuba Nakano (IGP)

[CONT] If all of your characters have "Yotsuba" in their card names, this card gets +1500 power and the following ability. "[AUTO] When this card becomes [REVERSE], if your memory has 2 or less cards, you may put this card into your memory."
[AUTO] At the beginning of your opponent's attack phase, if there is a character facing this card, you may move this card to an open position of your center stage.