Brain mole

Brain moles were a type of mole-like animal that fed on psionic activity, and that would attack victims by psionically burrowing into their brains.

Habitats
Beyond Toril, brain moles could be found in parts of the Tears of Selûne, having been brought there by gates or spelljammers originating from Toril.

Relationships
Brain moles were known to serve the duergar deities Laduguer and Deep Duerra.