If this card is equipped to a Fairy monster, it gains 1000 ATK. If this card is equipped to a non-Fairy monster, it cannot attack, also it loses 1000 ATK. If this card is sent to the GY because the equipped monster is destroyed: You can target 1 "Prinzessin" you control; equip this card to that target. You can only use this effect of "Glass Slippers" once per turn.