Intellect Devourer

D&D 2024 monster: Intellect Devourer. Source: Monster Manual (2025). challenge rating 2, creature type Aberration, Tiny size, speed 40 ft. Intellect Devourer Brain-Eating Body Thief Habitat: Underdark Treasure: None Intellect devourers serve their mind flayer creators by consuming other creatures' brains and puppetizing the mindless bodies. These quadrupedal brains seek to ambush sapient beings, then drain their thoughts until they're mindless. Then, if their victims are Humanoids, they enter the creatures' skulls. With access to the victims' knowledge and control of their bodies, intellect devourers use their perfect disguises to pass as the people they've replaced and further mind flayer plots. I know Durgan, and that wasn't Durgan. It was like something was wearing Durgan... like some sort of suit... a Durgan suit. Aberration Tiny 40 ft.