Set: Battles of Legend: Crystal Revenge ATK/DEF: 0/0 Card Number: BLCR-EN022 Monster Type: Rock Rarity: Ultra Rare Attribute: WATER Card Text: If this card is Summoned: Take 1000 damage , then change this card to Defense Position. During the End Phase if you did not take effect damage this turn: You can either add to your hand or Special Summon 1 Rock monster with 0 ATK from your Deck. You can only use this effect of "Crystal Skull" once per turn. Level: 1 Card Type: Effect Monster Name: Crystal Skull Edition: 1st