You are an Aberration

Illithids are born as parasitic tadpole that is inserted into a living humanoid's brain via the ear, consuming it and transforming the host into a mind flayer over several days in a process called, ceremorphosis. Mindflayers do not age in the manner of other beings, and can survive for thousands of years. 

Mindflayers mutate the bodies of the humanoids they possess, stretching and twisting their anatomy to the Mindflayer's preference. Your size is medium, and your height is higher than average among humans, rarely below 6 feet in height. Your internal anatomy lacks many unnecessary organs and other features, with a weight closer to 100 lbs despite your above-average height.

A mind flayer's body is gruesome mockery of the humanoid form. An illithid's flesh, was soft, supple, moist, and rubbery, resulting in an unmistakable texture easily distinguishable from any other creature by anyone familiar with it. Their skin ranged from mauve to greenish-violet in color. Mind flayers that were healthy from brain-rich diets excreted a thin film of slimy, glistening mucus that kept in moisture and gave off a faint odor similar to onions, garlic, or even vanilla, although the smell was imperceptible from afar. Their blood had a silvery-white color.

An illithid's bulging, ridged, elongated head is reminiscent of an octopus, with a cluster of four flexible, unsegmented, extendable, purplish-black tentacles surrounding their mouths. The tentacles could range in length from 2​ to ​4 feet (0.61​ to ​1.2 meters), appearing shorter when an illithid was at rest. They writhed and undulated almost constantly and absent-mindedly while the illithid pondered or otherwise was not using them, and flexed in anticipation when sentient beings drew close. They were also incredibly dexterous, powerful, and could be fully controlled by the mind flayer to perform both fine and strength-based tasks.

Your base walking speed is 30 feet. You can also use your psionic abilities to have a Flying (Hover) speed of 10ft

Your alien mind and innate psionics makes you resistant to Psychic damage and mind-altering magic and effects.

You must consume the brain of a humanoid creature at least once every 7 days. If you fail to satiate the hunger on Day 7 you have Disadvantage on Wisdom checks & saves. If you continue to not consume a brain after 8 days you get 1 level of exhaustion per day. Once you have consumed a brain, you attempt to gain insight from the target's memories. Its the DMs discretion on what information is provided. 

Consume Brain (Corpse)

As an Action with a minute duration, make an melee attack on a Humanoid dead within 24 hours, on a success you consume their brain and gain the following benefits: 

• You satisfy your feeding requirement
• You gain temp HP = 1d4 + proficiency bonus
• You can use this trait a number of times equal to your Proficiency Bonus, and you regain all expended uses when you finish a Long Rest.

Extract Brain (Incapacitated Target)

As an Action, make an melee attack on an Incapacitated/Restrained or Grappled by you Humanoid, on a success you consume their brain and gain the following benefits:  

• Target dies instantly
• You satisfy your feeding requirement
• You regain HP = 2d4 + proficiency bonus
• Once you use this trait, you can’t do so again until you finish a Long Rest.

Mindflayers are members of the underdark, their societies grow in places where light is but a wish and a distant memory. As such, your vision has adapted to the darkness, allowing you to see in complete darkness out to 120ft, but only in shades of grey.

You can speak, read, and write Common, Deep Speech, and Qualith