Pillars of Eternity II: Deadfire grimoires

Grimoires are equippable items in, that can only be used by Wizards. Unlike the previous game, they provide the wielder with a fixed set of spells in addition to those that they have learned by leveling. You cannot choose or change spells in a grimoire.

Grimoire-specific abilities
The following abilities are not obtainable through the wizard ability tree, and are only granted through the use of specific grimoires:
 * Arcane Assault → Weathered Grimoire
 * Arkemyr's Brilliant Departure → Arkemyr's Grimoire, Arkemyr's Illuminating Discoveries, Bekarna's Celestial Grimoire, Celestial Grimoire
 * Arkemyr's Mercurial Madness → Arkemyr's Grimoire
 * Bekarna's Midnight Daydream → Bekarna's Celestial Grimoire, Celestial Grimoire
 * Concelhaut's Crushing Doom → Iron-Clasped Grimoire
 * Concelhaut's Draining Missiles → Iron-Clasped Grimoire
 * Jernaugh's Equalizing Burst → Jernaugh's Careful Calamities
 * Llengrath's Superior Elemental Bulwark → Llengrath's Martial Masteries, Llengrath's Tome of Preservation
 * Maura's Grasping Tentacle → Maura's Infested Grimoire
 * Nannasin's Cobra Strike → Snakeskin Grimoire
 * Ninagauth's Death Ray → Ninagauth's Teachings
 * Ninagauth's Shadowflame → Ninagauth's Teachings
 * Zandethus' Draconic Fury → Zandethus' Dragon-Scaled Grimoire