Casseur de Logistille: Destruction Declaration (破却宣言キャッサー・デ・ロジェスティラ, Hakyaku SengenKyassā De Rojesutira?) is a thick magic-binding leather book specially given by and inherited from a witch, Logistilla, to Astolfo, after the former was charmed by the latter. It contains records of the means to shatter any magecraft, granting its owner the passive ability to deal with magecraft of A Rank and below. Though his Magic Resistance is normally D Rank, it is greatly elevated to A Rank, effectively making him immune to all modern magecraft.[1]

At the start of the Great Holy Grail War, he forgets its True Name, granting it the "suitably attached name" of Luna Break Manual: Magical All-purpose Tome of Tactics (魔術万能攻略書ルナ・ブレイクマニュアル, Majutsu Ban'nō Kōryaku-shoRuna Bureiku Manyuaru?) until he later is able to remember its real name by recognizing the moon is not in the sky. It is related to the legend of how Astolfo found his reason on the moon. Whenever the moon is visible to Astolfo, he would have no reason for it would be on the moon. On the other hand, should the moon not be visible, Astolfo regains his reason, thus remembering this Noble Phantasm's True Name.[3] When its True Name is released and the book is read, it becomes possible to break all magecraft close to High-Thaumaturgy excluding Reality Marbles.[1] It could perhaps be called a form of "Eye of the Mind" limited to magecraft.[4]

Astolfo can also use Casseur de Logistille as a Saber.


  1. 1.0 1.1 1.2 1.3 1.4 1.5
  2. 2.0 2.1 2.2 2.3 Fate/Grand Order material III - Astolfo, p.188-197
  3. Fate/Apocrypha - Volume 5: "空に輝く月はない。 かつて "黒" のライダーは月で自身の理性を発見したという。 それが真の月だったかは不明だが、重要なのは月に理性があったという伝説。 翻れば。月に理性があるなら、地上のライダーに理性はなく。月がないなら、地上のラ イダーは... 「さあ、行くよ--マスター--」"

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