EXFO-JP047 Jack Knight of the World Scars Secret Rare
While there are no other cards in the same column as this card, it can attack directly. If this card in the Extra Monster Zone does not point to a monster, it cannot be destroyed by card effects, also your opponent cannot target it with card effects. You can send 1 other card you control in the same column as this card to the GY; Special Summon 1 "Jack Knight" monster from your Deck in Defense Position. You can only use this effect of "Jack Knight of the World Scars" once per turn.