The Grimoire

Your patron is an entity of vast knowledge; perhaps a lesser god of knowledge, an ancient being sealed within a tome, or the keeper of an otherworldly library. Bestowing a fraction of its knowledge to you in the form of a strange tome, your patron has granted you the ability to comprehend the eldritch symbols and scrawlings that litter the tome’s pages. Within these symbols and scrawlings you’ve found secrets; secrets of power and arcana, their limits unknown. In exchange, you’ve bound yourself to your patron’s incomprehensible intellect and dominating will.

Expanded Spell List

The Grimoire lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Grimoire Expanded Spells

Spell Level	Spells
1st	command, identify
2nd	detect thoughts, zone of truth
3rd	glyph of warding, nondetection
4th	confusion, divination
5th	geas, legend lore

Bonus Cantrips

Beginning at 1st level, you learn the guidance and message cantrips, which count as warlock cantrips for you and do not count against your total number of cantrips known.

Eldritch Grimoire

Also at 1st level, your patron has bestowed upon you a grimoire containing eldritch magic and esoteric knowledge. You decide the appearance of your grimoire, which can range from a fine leather-bound tome to a stone tablet engraved with strange runes. If you later gain the Pact of the Tome feature, you can choose to have your grimoire serve as your Book of Shadows. While your grimoire is on your person, it serves as an arcane focus for your warlock spells and you gain the following benefits:

Arcane Translation. Any spell scroll you find counts as a warlock spell scroll for you, as your grimoire translates the otherwise unintelligible writing. If the scroll's spell is of a higher level than you can normally cast, you can add your proficiency bonus to the ability check made to cast it.

Esoteric Scripture. Whenever you cast a spell, you can choose to ignore the spell's verbal and material components, provided it doesn’t have a gold cost higher than five times your warlock level. Instead, the spell now only has somatic components, which takes the form of you writing upon the pages of your grimoire.

Studious Benefits

At 6th level, your rigorous study of your grimoire’s pages has given you insight into certain spells and magical effects. Whenever you make a saving throw and fail, you can choose to roll a d6 and add the result to the check. If the saving throw is against a spell that you know, you instead roll a d10.

You can use this feature a number of times equal to your proficiency bonus per long rest.

Forbidden Arcana

At 10th level, you’ve unlocked the secrets of your grimoire, allowing access to magic previously unknown to you. You learn two spells of your choice of 1st, 2nd or 3rd level from any class’ spell list. If the spells you choose don't appear on the warlock spell list, the spells are nonetheless warlock spells for you. You can cast each of the chosen spells once per short rest, without spending spell slots. In addition, whenever you finish a long rest, you can exchange the chosen spells.

Eldritch Erudition

At 14th level, the full-extent of the esoteric knowledge contained within your grimoire has been unlocked, fortifying your mind and intellect. You gain resistance to psychic damage. Moreover, when you make an Intelligence ability check or saving throw and the result is lower than your Charisma score, you can choose to use that score in place of the total.

You can use this feature a number of times equal to your proficiency bonus per long rest.