Summary

• Most books in Tasha's Cauldron of Everything double as spellbooks and casting focuses in D&D.
• Each spellbook has unique abilities, such as swapping spells or buffs to spellcasting.
• The Demonomicon stands out from this D&D sourcebook, with multi-school spells, tales of demons, and trapping abilities.

Tasha's Cauldron of Everything has a reputation as one of the most interesting sourcebooks for Dungeons & Dragons 5e, and some of its most interesting additions come in the form of wondrous tomes. These books feature a variety of spells and unique abilities, granting their bearers access to more power that tends to fall within specific themes. These can make for great treasure for a party wizard to find, and the unique flavor of each as a physical object is a nice bonus that helps give the books some personality.

Most of the books included in Tasha's Cauldron of Everything serve double duty as spellbooks and spellcasting focuses, although DnD's Demonomicon of Iggwilv is a notable exception that crams other significant attractions within its pages. Additionally, all except the Arcane Grimoire allow the user to spend one minute studying to replace a prepared spell with one from the appropriate correlating schools of magic.

10 The Alchemical Compendium Is Full Of Changes

Transmutation Spells

The Alchemical Compendium is a heavy, stained, and pungent volume wrapped in metal fittings that contains Transmutation spells like feather fall and polymorph. The book has 3 charges that can be partially or fully regained at each dawn, and expending one charge allows for an object in sight to be transformed into another object, with more charges necessary for larger items. A charge can also be used to swap a prepared spell with one in the book.

9 The Arcane Grimoire Is A Great Spellcasting Focus

No School Of Magic

A leather-bound tome, the Arcane Grimoire can be used as a spellcasting focus that gives any wizard using it a bonus to spell attack rolls and saving DCs. While the bonus is flexible depending on what rarity is assigned to the book, the boost it gives to the Arcane Recovery feature is consistent, allowing a user to increase the number of spell slot levels regained by one.

8 The Atlas Of Endless Horizons Is Good For Travel

Conjuration Spells

The Atlas of Endless Horizons is a rare, thick book bound in dark leather and entwined with silver lines representing a map. It contains Conjuration spells such as plane shift and word of recall. One of the three provided charges can be used to teleport up to 10 feet away as a reaction when hit by an attack. They can also be used to replace a prepared wizard spell with one included in the atlas, a feature that remains standard across all similar books found in Tasha's Cauldron of Everything.

7 The Duplicitous Manuscript Is Deceptive Fun

Illusion Spells

It contains Illusion spells like Nystul's magic aura and silent image.

The Duplicitous Manuscript earns its name, appearing as a collection of romance fiction to anyone except its owner, who can see it for the spellbook that it is. Appropriately, it contains Illusion spells like Nystul's magic aura and silent image. The Duplicitous Manuscript allows the user to expend a charge to impose disadvantage on another creature's Investigation checks on a spell cast by the bearer, making it easier to cloak the nature of magic.

6 The Fulminating Treatise Powers Up Evocation

Evocation Spells

A scorched and crackling spellbook that emits a stench of smoke and ozone, the Fulminating Treatise should be hard to miss. It contains a variety of Evocation spells like Leomund's tiny hut and the iconic DnD spell fireball. When a creature takes damage from an Evocation spell by the book's bearer, the user may expend a charge to deal an extra 2d6 force damage as a reaction to that creature and knock it prone.

5 The Heart Weaver's Primer Is A Charmer's Bible

Enchantment Spells

The Heart Weaver's Primer tends to be one of the most immediately attractive DnD books to pick up, with a scent that's pleasant to whoever comes across it. Between its covers are a variety of Enchantment spells from charm person to modify memory, giving the bearer a lot of manipulative power. An expended charge can impose disadvantage on the first saving throw a target makes against the caster's Enchantment spells.

4 The Libram Of Souls And Flesh Has Creepy Powers

Necromancy Spells

The Libram of Souls and Flesh is a much more morbid tome than most alternatives, with unnaturally chill skin covers and bone fittings. It contains Necromancy spells including the Tasha's Cauldron of Everything addition summon undead, along with classics like false life and vampiric touch. A charge can be spent to make the holder appear undead, even when spells used to determine a target's status are used.

3 The Planecaller's Codex Is Truly Extraplanar

Conjuration Spells

Conjuration spells like banishment and theTasha's Cauldron of Everything option summon elemental lurk within.

Bound in fiend hide and adorned with a diagram of the Great Wheel of the multiverse, the Planecaller's Codex is an obviously otherworldly book. Conjuration spells like banishment and the Tasha's Cauldron of Everything option summon elemental lurk within. The user may spend a charge to grant a summoned or created creature with advantage on attack rolls for a minute, which could be a good way to turn the tide in combat.

2 The Protective Verses Has Defensive Power

Abjuration Spells

The Protective Verses is a leather spellbook with iron and silver fittings, bound by an iron lock that requires hitting a DC 20 check to open. Its Abjuration spells include Mordenkainen's private sanctum and symbol. A charge can be expended to grant a creature within 30 feet 2d10 temporary HP, showcasing the fact that the "protective" in the title is more than just decorative.

1 The Demonomicon Of Iggwilv Is A Staggering Tome

Multiple Schools Of Magic

The Demonomicon of Iggwilv is the belle of the book ball in Tasha's Cauldron of Everything, and this expansive treatise was composed by Tasha herself. It's considered the most blasphemous tome of demonology in the multiverse, recounting the Abyss and demons' oldest and most current profanities. It documents the Abyss' infinite layers and inhabitants, and although demons have attempted to rip out pages to conceal their secrets, the book continues to keep up-to-date.

The Demonomicon of Iggwilv has an intensive feature list, including a variety of spells from different schools of magic as is fitting of D&D's titular witch. It can reveal information regarding the Abyss and even allows the user to trap a fiend in a Magic Circle within one of the book's blank pages. The Demonomicon can potentially allow one of its bound creatures to possess its holder and transport anyone who opens it to the nascent layer of the Abyss, qualifying it as an especially dangerous Tasha's Cauldron of Everything book that makes for an exciting Dungeons & Dragons inclusion.