Card Trivia:Spell Economics

"Spell Economics":

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• Appearances

• "Fatal Abacus" appears in this card's artwork.

• This book appears in the artworks of "Fruits of Kozaky's Studies" (paired with "Fatal Abacus") and "Good Goblin Housekeeping".

• This card's name is a reference to this card's artwork, as the book features the economic symbols, "$" and "¥" in the design of its cover.

• In "Kozaky's" storyline, it is revealed that this book has an infinite number of pages, and the pen moves in accordance to the user's thoughts.