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 cant do so again until you finish a Long Rest.
In the past, you usually contacted your patron through intermediaries. Now you can communicate directly
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 can perform an esoteric rite for 1 minute. At the end of it, you regain allexpended Pact Magic spell slots. Once you use this feature, you cant do so again until you finish a Long Rest.
When you reduce an enemy to 0 Hit Points, you gain Temporary Hit Points equal to your Charisma modifier plus your Warlock level (minimum of 1 Temporary Hit Point). You also gain this benefit if someone else reduces an enemy within 10 feet of you to 0 Hit Points.
You can call on your fiendish patron to alter fate in your favor. When you make an ability check or a saving throw, you can use this feature to add 1d10 to your roll. You can do so after seeing the roll but before any of the rolls effects occur.
You can use this feature a number of times equal to your Charisma modifier (minimum of once), but you can use it no more than once per roll. You regain all expended uses when you finish a Long Rest.
Choose one damage type, other than Force, whenever you finish a Short or Long Rest. You have Resistance to that damage type until you choose a different one with this feature.
Once per turn when you hit a creature with an attack roll, you can try to instantly transport the target through the Lower Planes. The target must succeed on a Charisma saving throw against your spell save DC, or the target disappears and hurtles through a nightmare landscape. The target takes 8d10 Psychic damage if it isnt a Fiend, and it has the Incapacitated condition until the end of your next turn, when it returns to the space it previously occupied or the nearest unoccupied space.
Once you use this feature, you cant use it again until you finish a Long Rest unless you expend a Pact Magic spell slot (no action required) to restore your use of it.