"Hidden Spellbook (Updated from: Hidden Book of Spell)" Rating Score by ダイナソー紅月

One of the earliest cards to return a specific card to his deck. Or rather, this card from season 3 is the founder. With this card, 《Pot of Avarice》and 《The Transmigration Prophecy》can exist. do not forget.
This card is also the first card, so even though it is a trap card, it has the disadvantage that it can only be activated during your turn. It's an adjustment that makes a weak card even weaker, which is typical of Konmai, who is really bad at balancing.
Therefore, it's unfortunate that it takes two turns (counting each other's turns) to set and activate. The more the environment changes, the more painful it becomes.
However, the effect itself is the most useful even in the early days of this kind of card. Even compared to Ray of Hope and The Graveyard in the Fourth Dimension before Pot of Avarice, it's great that he can put any spell card back into the deck with a wider range.
At the time of his appearance, there was almost no way to use his spell card in his GY or his spell card to activate his GY (Magician of Faith at most), so I returned the spell card to his deck. The benefits are incomparable.
When it first came out, it was a powerful enough card.
Basically, it can be said that the card has finished its role as soon as 《Pot of Avarice》appears, regardless of the type of card, but it has the feature that it can be searched with 《Spellbook of Secrets》.
That's why, although it is to the extent that it is said, the merit is the merit. It's fun to pin it in his Spellbook Deck as a secret ingredient. At that time, let's add 《Spellbook Organization (Updated from: Pigeonholing Books of Spell)》.