Neh-thalggu Tactics - The Monsters Know What They’re Doing
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Also called “brain collectors,” neh-thalggu do just what their sobriquet suggests: They harvest brains, which they use as psionic batteries.

Also called “brain collectors,” neh-thalggu do just what their sobriquet suggests: They go around surgically harvesting other creatures’ brains, which they use as psionic batteries. According to the flavor text, when they amass a dozen brains, they’re fully charged and ready to return to the Far Rea