The Librarian

You have made a pact with an enigmatic being that collects knowledge above all else. Whether it is a dragon with an unusual hoard, a fiendish purveyor of dark secrets, or the second face of a god of knowledge, your patron desires to know everything — and maybe, so do you. Your pact grants you the chance to learn far beyond your mortal scope, and as long as you seek what your patron does not yet know, such knowledge will remain within your reach.

Expanded Spell List

1st-level Librarian feature

The Librarian 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.

Undead Expanded Spells

Spell Level	Spells
1st	detect magic, identify
2nd	detect thoughts, silence
3rd	detect past, speak with dead
4th	arcane eye, divination
5th	legend lore, skill empowerment

Sworn Scholar

1st-level Librarian feature

You can choose to use Intelligence, instead of Charisma, as your warlock spellcasting ability. If you choose to use Intelligence, all warlock features and Eldritch Invocations that reference your Charisma modifier use your Intelligence modifier instead. You must make this choice when you gain this feature.

In addition, you learn one language of your choice and become proficient in your choice of two of the following skills: Arcana, History, Nature, or Religion.

Meticulous Chronicling

1st-level Librarian feature

You create a grimoire of all knowledge with your patron’s guidance. The grimoire weighs 10 lbs and its contents shift depending on the topic you choose to research when opening it.

When you finish a rest during which you spent at least 1 hour consulting your grimoire, you can choose any one language and one skill. Until you consult the grimoire again, you can speak, read, and write the chosen language and are proficient in the chosen skill.

Additionally, the grimoire contains a wealth of information regarding the process of scribing scrolls. While you have possession of your grimoire, you can create spell scrolls in half the time and at half the cost. In addition, you can create a spell scroll for any spell that is of a level you can cast with your pact magic spell slots, even if you don't know it and the spell isn't on the warlock spell list. You can cast any spell from a spell scroll as if it were on the warlock spell list.

If your grimoire is destroyed or lost, you can replace it with 8 hours of writing and 25 gp worth of paper and magical inks. When you do, your old grimoire turns to dust.

Librarian’s Favor

6th-level Librarian feature

Your patron’s favor allows you to navigate the hallowed silence of halls of knowledge. You gain resistance to thunder damage and can ignore the verbal components of spells you cast.

Voracious Learner

10th-level Librarian feature

Your proficiency bonus is doubled for any ability check you make using the skills you gained proficiency in with your Sworn Scholar and Meticulous Chronicling features. In addition, you can read all written languages. When you read a book, scroll, or other text that would normally take you longer than 1 hour to read completely, it only takes you 1 hour to read it completely.

Thirst for Knowledge

14th-level Librarian feature

You can snatch magic out of the air and add it to your personal library. When a creature you can see within 60 feet casts a spell, you can use your reaction to interrupt it. If the spell is 5th level or lower, the spell fails and you immediately scribe a spell scroll containing the spell. If the spell is 6th level or higher, make an ability check using your spellcasting ability. The DC equals 10 + the spell’s level. On a success, the spell fails and has no effect.

Once you use this feature, you can’t do so again until you finish a long rest, unless you expend a use of one of your arcanum spells to use this feature again.