Dread BlindfoldEquipment 17
Source Pathfinder Core Rulebook
Price 15,000 gp
Weight negligible
When tied over your eyes, this ragged strip of black linen gives you a +3 item bonus to Intimidation checks and darkvision. You can see through the blindfold, but only using darkvision.
The first time a particular creature sees you in a day, it must succeed at a DC 37 will save or be frightened 1. This is an emotion, fear, and mental effect, and your allies become immune to it after about a week.
Activate 
command
Frequency once per minute
Trigger You damage a creature with a Strike
Effect Your target is gripped by intense fear. This has the effect of a DC 37 Phantasmal Killer spell, but it is an enchantment instead of an illusion. The creature is then temporarily immune for 24 hours.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
EmotionThis effect alters a creature's emotions. Effects with this trait always have the mental trait as well. Creatures with special training or that have mechanical or artificial intelligence are immune to emotion effects.
EnchantmentEffects and magic items with this trait are associated with the enchantment school of magic, typically involving mind control, emotion alteration, and other mental effects.
FearFear effects evoke the emotion of fear. Effects with this trait always have the mental and emotion traits as well.
InvestedA character can wear only 10 magical items that have the invested trait. None of the magical effects of the item apply if the character hasn't invested it, nor can it be activated, though the character still gains any normal benefits from wearing the physical item (like a hat keeping rain off their head).
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
MentalA mental effect can alter the target's mind. It has no effect on an object or a mindless creature.