CunningEquipment 5
Price 140 gp
Weight negligible
Usage etched on a slashing or piercing weapon The weapon performs divination magic on the blood of your foes, granting you insight into their abilities and weaknesses.
Activate 
envision
Frequency once per minute
Requirements On your previous action this turn, you used this weapon to hit and damage a creature that has blood or other vital fluids
Effect You learn the secrets the weapon gleaned from the creature's blood. Attempt to Recall Knowledge about the target of the required attack, gaining an item bonus to the Recall Knowledge skill check equal to the weapon's item bonus to attack rolls from its potency rune.
If the required attack was a critical hit, you also gain a +2 circumstance bonus to this check.
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.