Odin's Grimoire

Odin's Grimoire (オーディンの黒書 Ōdin no kurosho, lit. Odin's Dark Tome) is a Tome that is introduced in Fire Emblem Fates. Eponymously named after the Dark Mage Odin, Odin's Grimoire conjures a crimson bolt of fell energy to impale a selected enemy target when used in battle.