[AUTO](Soul) Darkness (This ability is active if cards have been put into your soul during this turn):At the beginning of your attack step, if the number of cards in your soul is ten or more, you may call this card to (RC). If you do, this unit gets [Power]+5000 until end of turn. Then, if the number of cards in your soul is fifteen or more, this unit gets [Power]+10000 until end of turn.