Royal Straight Slasher (Secret Rare)

Cannot be Normal Summoned/Set. Must be Special Summoned with Royal Straight. If you have all of Queen's Knight, King's Knight, and Jack's Knight in your GY: You can send 5 monsters, with different Levels of 1, 2, 3, 4, and 5, from your hand and/or Deck to the GY, and if you do, destroy all cards your opponent controls. When this card is destroyed by battle: You can target up to 3 LIGHT Warrior monsters in your GY; Special Summon them. You can only use each effect of Royal Straight Slasher once per turn.