If you have no "Spellbook" Spell Cards in your Graveyard: Reveal 3 "Spellbook" Spell Cards with different name from your Deck, your opponent randomly adds 1 of them to your hand and shuffle the other back into your Deck. You can only active 1 "Spellbook Library of the Crescent" per turn. You cannot active any Spell Cards the turn you active this card, except "Spellbook" Spell Cards.