Effect
Once per turn: You can send 1 "Spellbook" Spell Card from your Deck to the Graveyard. During the End Phase of the turn this card activated this effect: You can Tribute this card; Special Summon 1 Level 5 or higher DARK Spellcaster-Type monster from your Deck. You must have 5 or more "Spellbook" Spell Cards with different names in your Graveyard to activate and to resolve this effect.
The monster effect "Once per turn: You can send 1 'Spellbook' Spell Card from your Deck to the GY" is an Ignition Effect. (This effect does not target.)
The monster effect "During the End Phase of the turn this effect was activated, if you have 5 or more 'Spellbook' Spell Cards with different names in your GY: You can Tribute this card; Special Summon 1 Level 5 or higher DARK Spellcaster-Type monster from your Deck" is a Trigger Effect. (This effect does not target.)
The monster effect "Special Summon 1 Level 5 or higher DARK Spellcaster-Type monster from your Deck" can only be activated during the End Phase of the turn that "Spellbook Magician of Prophecy" activated its own "Once per turn: You can send 1 'Spellbook' Spell Card from your Deck to the GY" monster effect.
When activating the monster effect "Special Summon 1 Level 5 or higher DARK Spellcaster-Type monster from your Deck," you Tribute "Spellbook Magician of Prophecy" itself as a cost.
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