Guardian Slime [LED7-EN003] Ultra Rare The Valuable Book Volume 5 it gains 1000 ATK and

it gains 1000 ATK and the opponent's monster loses 500 ATK

) Cannot be used as an Xyz Material for an Xyz Summon

or Effect Monster's effect and destroy all cards your opponent controls

Then destroy all cards you control

Guardian Slime [LED7-EN003] Ultra Rare The Valuable Book Volume 5 it gains 1000 ATK andSet: Legendary Duelists: Rage of Ra Card type: Effect Monster Rarity: Ultra Rare Attack: 0 Defense: 0 If you take battle or effect damage: You can Special Summon this card from your hand. During damage calculation, if this card battles an opponent's monster (Quick Effect): You can make this card gain DEF equal to that opponent's monster's ATK during that damage calculation only. If this card is sent from the hand or field to the GY: You can add 1