Memento Fracture Dance

If you control a "Memento" monster: Target 1 card on the field; destroy it, then, if you control "Mementoral Tectolica, the Netherskull Dragon", you can destroy 1 more card on the field. When an attack is declared involving your "Memento" monster and an opponent's monster: You can banish this card from your GY; all face-up monsters your opponent currently controls lose 1000 ATK until the end of this turn. You can only use each effect of "Memento Fracture Dance" once per turn.