Effect
If this card is in your Graveyard: You can banish 3 "Spellbook" Spell Cards from your Graveyard; Special Summon this card from your Graveyard.
The monster effect of "Spellbook Knight Diar" is an Ignition Effect that activates in the Graveyard.
This effect does not target.
When activating the effect, you must banish 3 "Spellbook" Spell Cards from your Graveyard as a cost.
If "Spellbook Knight Diar" is no longer in the Graveyard when the effect resolves, the Special Summon is not applied.
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