If you have a "Mitsurugi" Ritual Spell in your GY: Tribute 3 monsters whose original names are "Ame no Murakumo no Mitsurugi", "Futsu no Mitama no Mitsurugi", and "Ame no Habakiri no Mitsurugi"; make your opponent banish exactly 8 cards from their hand, Extra Deck, field, and/or GY.