Circle of Illithid

Circle of Brains might be a better description for Mindflayers, as all other lifeforms are beneath them and are considered different quaity of food.

brains for every tentacle

When you choose this circle at 2nd level, you learn this additional druid spell. It is a spell that requires a piece of fresh brain harvested within the last 24 hours, to cast the spell.

brain repose

When you choose this circle at 2nd level, you learn this additional druid spell, a spell that keeps acquired brains fresh for 10 days.

circle spells

3 hold person, spider climb
5 vampiric touch, slow,
7 freedom of movement, stone shape
9 passwall, contagion

tentacle growth

as a bonus action the illithid druid can extend the feeding tentacles 10 feet.

tentacle growth

as a bonus action the illithid druid can extend the facial tentacles 5 feet.

the superior illithid shape

when shape changing the illithid druid can chose to only partially shape change - keeping the head and feeding tentacles of an illithid, in proportion to the creature it shape changed into.

tentacle of shadows

as a bonus action extend facial tentacles 10 feet that visually appear as shadows