Guardian Slime [LED7-EN003] Ultra Rare The Valuable Book Volume 5 This card cannot be Special

This card cannot be Special Summoned except by the effect of "Knight's Title"

Destroy all Attack Position monsters on your opponent's side of the field

then target 1 "Cyber Dragon" in your Graveyard

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

Then destroy all cards you control

Guardian Slime [LED7-EN003] Ultra Rare The Valuable Book Volume 5 This card cannot be SpecialSet: 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