From Edge of Darkness Wiki
Hand of a Killer
Your character has a talent for using mundane objects to inflict pain; in his hands, almost anything with the right heft or edge is an effective killing tool. The character ignores the standard -1 penalty for improvised weapons. This doesn’t negate other limitations inherent to certain objects, like a damage maximum or a propensity to break in combat.
Drawback: The character can never take a specialty relating to the use of a melee weapon, ranged weapon or firearm. While the character is capable of using actual, designed weapons, they don’t interest him enough to become especially proficient in them.