The Sphinx

You make a deal with a Sphinx

Expanded Spell List

The Fiend 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.

Fiend Expanded Spells

Spell Level	Spells
1st	detect evil and good, command
2nd	lesser restoration, zone of truth
3rd	sending, clairvoyance
4th	freedom of movement, divination
5th	commune, greater restoration

Riddle Solver

Starting at 1st level, you gain the ability read and write Sphinx. Whenever you roll an insight check against a creature, you may gain a bonus equal to your proficiency score. You may do this a number of times equal to your wisdom bonus. You regain all uses of this feature at the end of a long rest.

Bereft of Bewilderment

Starting at 6th level, when you make a saving throw against an effect that would charm or frighten you, you can make that save with advantage 

You may use this ability a number of times equal to your proficiency bonus and regain all uses once you finish a short or long rest.

Inscrutable

Starting at 10th level, your thoughts can’t be read by telepathy or other means unless you allow it. You also have resistance to psychic damage.

Sphinx's Roar

Starting at 14th level, you gain the ability to magically roar.

Roar (3/Day). You emit a magical roar. Each time you roar before finishing a long rest, the roar is louder and the effect is different, as detailed below. Each creature within 500 feet of you and able to hear the roar must make a saving throw against your spell save DC.

First Roar. Each creature that fails a Wisdom saving throw is frightened for 1 minute. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Second Roar. Each creature that fails a Wisdom saving throw is deafened and frightened for 1 minute. A frightened creature is paralyzed and can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Third Roar. Each creature makes a Constitution saving throw. On a failed save, a creature takes 8d10 thunder damage and is knocked prone. On a successful save, the creature takes half as much damage and isn't knocked prone.