You have unearthed Eldritch Invocations, pieces of forbidden knowledge that imbue you with an abiding magical ability or other lessons. You gain one invocation of your choice, such as Pact of the Tome. Whenever you gain a Warlock level, you can replace one of your invocations with another one for which you qualify. You can't replace an invocation if it's a prerequisite for another invocation that you have. When you gain certain Warlock levels, you gain more invocations of your choice, as shown in the Invocations column of the Warlock Features table.

Through occult ceremony, you have formed a pact with a mysterious entity to gain magical powers. You know two Warlock cantrips of your choice. Charisma is your spellcasting ability for your Warlock spells. You can use an Arcane Focus as a Spellcasting Focus. You prepare the list of level 1+ spells available for you to cast. The Warlock Features table shows how many spell slots you have (Pact Magic slots), all of which are the same level. You regain all expended Pact Magic spell slots when you finish a Short or Long Rest. The chosen spells must be of a level no higher than what's shown in the table's Slot Level column for your level.

You can perform an esoteric rite for 1 minute. At the end of it, you regain expended Pact Magic spell slots but no more than a number equal to half your maximum (round up). Once you use this feature, you can't do so again until you finish a Long Rest.

You gain a Warlock subclass of your choice: Archfey Patron, Celestial Patron, Fiend Patron, or Great Old One Patron. A subclass is a specialization that grants you features at certain Warlock levels. For the rest of your career, you gain each of your subclass's features that are of your Warlock level or lower.

You gain the Ability Score Improvement feat (see chapter 5) or another feat of your choice for which you qualify. You gain this feature again at Warlock levels 8, 12, and 16.

In the past, you usually contacted your patron through intermediaries. Now you can communicate directly; you always have the Contact Other Plane spell prepared. With this feature, you can cast the spell without expending a spell slot to contact your patron, and you automatically succeed on the spell's saving throw. Once you cast the spell with this feature, you can't do so in this way again until you finish a Long Rest.

Your patron grants you a magical secret called an arcanum. Choose one level 6 Warlock spell as this arcanum. You can cast your arcanum spell once without expending a spell slot, and you must finish a Long Rest before you can cast it in this way again. As shown in the Warlock Features table, you gain another Warlock spell of your choice that can be cast in this way when you reach Warlock levels 13 (level 7 spell), 15 (level 8 spell), and 17 (level 9 spell). You regain all uses of your Mystic Arcanum when you finish a Long Rest. Whenever you gain a Warlock level, you can replace one of your arcanum spells with another Warlock spell of the same level.

You gain an Epic Boon feat (see chapter 5) or another feat of your choice for which you qualify. Boon of Fate is recommended.

When you use your Magical Cunning feature, you regain all your expended Pact Magic spell slots.