PolyHero Rogue: 1d20 Lock & Pick - Cold Iron
PolyHero Rogue: 1d20 Lock & Pick - Cold Iron - Rules of Play says:
Pick the lock. One of the first skills most rogues become proficient in is the picking of locks. Of course, how difficult a lock is to pick can depend on many things. The dexterity, intelligence and luck of the thief, but also the craftmanship, cunning, and magical snares of the lock maker.