Hierophant of Prophecy

[ Spellcaster / Xyz / Effect ] 2 Level 7 Spellcaster-Type monsters Once per turn: You can detach 1 Xyz Material from this card; destroy Spell/Trap Card(s) your opponent controls, up to the number of "Spellbook" Spell Cards in your Graveyard. ATK/ 2800 DEF/ 2600