Spellbook of Power [AP02-EN003] Ultimate Rare Secrets of Eternity While this card is on

While this card is on the field

) The original ATK of this card is equal to 1000 x the number of Fusion Material Monsters used to Special Summon it

You can only use 1 "Castel

Set: Duelist Pack: Kaiba Card type: Normal Trap Rarity: Ultimate Rare Select and destroy 1 face-up monster

Spellbook of Power [AP02-EN003] Ultimate Rare Secrets of Eternity While this card is onSet: Astral Pack 2 Card type: Normal Spell Rarity: Ultimate Rare Target 1 Spellcaster Type monster you control; until the End Phase, it gains 1000 ATK. Also, until the End Phase, each time it destroys an opponent's monster by battle: You can add 1 "Spellbook" Spell Card from your Deck to your hand. You can only activate 1 "Spellbook of Power" per turn.