Card Rulings:Charioteer of Prophecy

OCG Rulings

 * Discarding a "Book of Spell" Spell Card is a cost.


 * This effect targets 1 Spellcaster-type monster in your Graveyard.


 * This effect can be activated even if "Macro Cosmos" is active.


 * This effect can be activated by targeting a Spellcaster-type Fusion, Synchro or Xyz Monster. In that case, it is returned to the Extra Deck.