You can roar in order to frighten your foes. All enemies within 8 hexes must roll for CH if their roll is failed then they will take all their statistics drop by 1 and they make all skill rolls with -10 modifier. If roll was a critical failure (10 was rolled) then they will run from combat dropping everything that might hamper their escape. Deathclaw’s roar has no effect on another deathclaw, robot or any creature with charisma of ten or more. Mutants get +2 modifier to charisma and dogs get +1 when rolling against the effect of deathclaws roar.

–In-game description, Fallout: The Enclave Of The United State Of America & Artificial Intelligence Machines Project

Deathclaw's Roar is a perk in Fallout: The Enclave Of The United State Of America & Artificial Intelligence Machines Project.

Effect

Each Charisma 9 or lower enemy within a Hex Radius of 8 rolls against Charisma with following modifiers depending on their Race, except Deathclaws and Robots. If they fail it, reduce their SPECIAL stats by 1 and Skills by 10. Then if it was a Critical Failure, they drop __ and begin fleeing.
Dog: +1
Super Mutant or Half-Mutant: +2

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