Card Rulings:Book of Taiyou


 * Flipping a monster into face-up Attack Position with "Book of Taiyou" is NOT a Flip Summon.


 * When a Flip Effect Monster is flipped face-up by the effect of "Book of Taiyou", its Flip Effect is activated. You can Set a monster and use "Book of Taiyou" on it that same turn; its Flip Effect will activate.

Mentions in Other Rulings

 * [Re: Armor Exe] If you Summon "Armor Exe", flip it face-down with "Book of Moon", and flip it face-up with "Book of Taiyou", it CAN attack because its non-attack effect was reset and because flipping it face-up with "Book of Taiyou" was NOT a Flip Summon.


 * [Re: Big-Tusked Mammoth] Monsters flipped face-up with an effect like "Book of Taiyou" are not affected by "Big-Tusked Mammoth" and can attack that turn.


 * [Re: Protector of the Sanctuary] If "Protector of the Sanctuary" is on the field, then Flip Effects like "Morphing Jar" will still activate because they must activate when the monster is flipped (whether it was Flip Summoned, flipped by an attack, or flipped by "Book of Taiyou", etc.).


 * [Re: Rivalry of Warlords] While "Rivalry of Warlords" is active, you can still Set monsters face-down if they are a different Type than the Type you control. If your face-down monster of a different Type is attacked, then the monster is destroyed after damage calculation. If the destroyed monster of a different Type was a Flip Effect Monster, its Flip Effect is still activated, and then the destroyed monster is sent to the Graveyard. If your face-down monster of a different Type is flipped by "Swords of Revealing Light", "Book of Taiyou", etc., then it is destroyed as necessary.


 * [Re: Spirit Reaper] "Spirit Reaper" is only destroyed by its own effect if it is face-up on the field when the effect designating it as a target activates, AND after the effect designating it as a target resolves. If you Special Summon "Spirit Reaper" with Monster Reborn, or flip it face-down with "Book of Moon", or flip it face-up with "Book of Taiyou", it is not destroyed...


 * [Re: Ultimate Insect LV1] You cannot activate the effect of "Ultimate Insect LV1" the same turn it is flipped face-up, including by "Book of Taiyou", etc.