Survival in New Vance

Reaction when a hostile creature within 5 feet hits you with a melee attack. In a flash of honed reflexes, you twist and launch a brutal counter-attack against a hostile creature that just hit you with a melee attack. Make a single unarmed strike or melee weapon attack with the hilt of your weapon against the triggering creature; if it hits, the target takes 1d8 bludgeoning damage and must succeed on a Strength saving throw or be knocked prone.