Use these cards to retrieve your banished Spellbook cards. Spellbook of Eternity adds a banished Spellbook spell card back to hand. Wheel of Prophecy, when special summoned by another Spellcaster-type monster, allows you to return as many banished Spellbook spell cards back to the deck and return the rest of them to your graveyard.
Here are some Prophecy monsters that can be used to support Destroyer of Prophecy.
Man, I never liked Prophecy Destroyer's artwork. It's too bland and doesn't fit in with YGO's established artstyle. They did a much better job on later TCG-exclusive arts with a western style, though. (Noble Arms - Caliburn has my second-favourite art of any card, and the Noble Knights, Noble Arms and Burning Abyss in general look pretty good.)