Eye of EnlightenmentConsumable 5
Source Pathfinder Secrets of Magic
Price 25 gp
Weight negligible
Usage affixed to a weapon
Activate 
envision
Trigger You succeed at a Strike with the affixed weapon
Requirements You're an expert in Arcana, Occult, Nature, Religion, Society, or a Lore skill.
This dried eye was plucked from a magical creature. You combine your observation about your enemy's reaction to your Strike with the stores of magical wisdom within the talisman to try to glean more information about the foe's true nature. When you activate this talisman, you attempt to Recall Knowledge about the creature you hit. If you roll a critical failure, you get a failure instead.
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.
ConsumableAn item with this trait can be used only once. Unless stated otherwise, it's destroyed after activation. Consumable items include alchemical items and magical consumables such as scrolls and talismans. When a character creates consumable items, they can make them in batches of four.
DivinationThe divination school of magic typically involves obtaining or transferring information, or predicting events.
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.
TalismanA talisman is a small object affixed to armor, a shield, or a weapon (called the affixed item). You must be wielding or wearing an item to activate a talisman attached to it. Once activated, a talisman burns out permanently.