"Sol and Luna" Rating Score by みめっと

The effect is, if I may say so, it's written in the card name, but it's something called "Book of the Sun and Moon".
It's a card that can wake you up and put you down at the same time, especially since 《Book of Taiyou》is a Normal Spell and this is his Quick-Play Spell, so you can also wake up with Friche. Considering the surprise of Effect Monster, it is big.
Also, depending on the target monster's battle position, it is possible to wake up both or lay down both.
However, in order to activate this effect, both players must have 1 monster on their field that can be targeted by this effect. It must be said that it is quite troublesome to have to prepare monsters for
I don't think there are many situations where you want to wake up or lay down both your own and your opponent's monsters, and since it's a Quick-Play Spell with the name Turn 1, it can't be used that turn after it's set, and even if it's salvaged, it can't be used that turn. Not being able to use the second card is much inferior to 《Book of Taiyou》.
It sounds good to say that it can be used flexibly for combos, defense, and interference, but it doesn't necessarily mean that a card with dual effects is not always good for both. .