Mind Tinkerer

Your magic comes from your ancestors, with divine minds, and manipulative power. Often these ancestors are Illithids, either from the victims offspring, actually being related distantly to the Illithid itself.

 

Intellectual prowness

Your psionic ancestors grant you greater intelligence, and your intelligence score increases by 2, to a maximum of 20, additionally, you learn an extra enchantment spell a level of which you have spell slots for, this spell counts as a sorcerer spell for you, but doesn't count against the number of spells known for you. You gain this bonus again at 3rd level, once again at 6th level, and one more time at 11th level. Lastly, you can choose to use your Intelligence score as the Spell Save DC for enchantments.

Curiosity of the Mind

The Tiefling's eyes go milky white for a moment, a nearby man's head bulges, as the necessary information is sucked out of the man's brain, then tentacles begin growing on his chin many people gasping and pointing fingers.

Brain Probe

You can use a bonus action to cause 4 slimy tentacles to erupt around your mouth for 10 minutes. For the duration, you can make a melee attack with these tentacles which you use your spell attack bonus for. On a hit, they do 2d4 acid damage, and 2d4 bludgeoning damage. If you reduce a creature to zero hit points, you consume its brain and gain 2d4 temporary hit points. If you are concentrating on a spell of 2nd Level or higher, you gain advantage on the attack roll. While this feature is active, you are indistinguishable from an Illithid, and you gain a bonus to all charisma checks that is equal to half your proficiency bonus. You can dismiss this feature as a bonus action. You can use this feature a number of times equal to a third of your Sorcerer Level, and you replenish all uses of this feature after a long rest.

Mind Flayer Connection

You can cast Mind Walk at will, without material components.

Psychic Strength

You gain immunity to Psychic damage, and instead regain hit points equal to your intelligence modifier rounded (minimum of 1) up when your are supposed to take psychic damage.Also, when you cast a damage dealing spell, you can deal an additional 1d6 psychic damage.