The Grand Spellbook Tower (Gold Rare)

Once per turn, during your Standby Phase, if you have a Spellcaster-Type monster on your side of the field or in your Graveyard: You can place 1 Spellbook Spell Card from your Graveyard on the bottom of your Deck, except The Grand Spellbook Tower, then draw 1 card. When this card in your possession is destroyed by your opponent's card and sent to your Graveyard: You can Special Summon 1 Spellcaster-Type monster from your hand or Deck whose Level is less than or equal to the number of Spellbook Spell Cards in your Graveyard.