Dungeon Crawl Classics
Helm of the Dread Lord
Intimidating Helmet with face completely covered +2 Armor Class -4 Perception -2 Armor Check
Can use an action to make opposed will save to intimidate opponent. Success, opponent will flee for 1d5 rounds plus one round per level of the warrior. Failure, opponent is shaken for one round, -2 to attacks, and the wearer is no longer able to intimidate for the next ten minutes (or the same combat… Whichever is longer).
Helm provides a +2 to Will Saves
-1 to luck modifier while being worn.