Royal Straight Slasher (Secret Rare) [BLCR-EN001-SeR]

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.