Infected Elder Brain

D&D 2024 monster: Infected Elder Brain. Source: Phandelver and Below: The Shattered Obelisk. challenge rating 11, creature type Aberration (Mind Flayer), Lar... The Far Realm has tainted the elder brain that fuels Illithinoch's mind flayers. Aberration (Mind Flayer) Large 5 ft., swim 10 ft.