Number 87: Queen of the Night

3 Level 8 monsters // Once per turn, during either player's turn: You can detach 1 Xyz Material from this card, then activate 1 of these effects. // * Target 1 Set Spell/Trap Card your opponent controls; while this card is face-up on the field, that Set card cannot be activated. // * Target 1 Plant-Type monster on the field; change that target to face-down Defense Position. // * Target 1 face-up monster on the field; that target gains 300 ATK.