Number 52: Diamond Crab King [YZ06-EN001] Ultra RareSet: Yu Gi Oh! ZEXAL Manga Promotional Cards Card type: Xyz Effect Rarity: Ultra Rare Defense: 3000 2 Level 4 monsters Cannot be destroyed by battle except with "Number" monsters. You can detach 1 Xyz Material from this card; decrease this card's DEF by any amount, and if you do, this card gains ATK equal to the same amount, also if this card attacks a Defense Position monster, inflict piercing battle damage to your opponent. These changes last until