Sword of Wisdom (3.5e Equipment)
From D&D Wiki
 Sword of Wisdom
- The Sword of Wisdom is an artifact in the Twelve Swords campaign setting.
This sword (like the other eleven) has a generic metallic colored blade and a black hilt. There is a small white symbol (See Symbol below) etched in on side of the black hilt. The sword is unbreakable, and it will retain an extremely keen edge no matter what it cuts or is struck against, and always gleams with a faint white tinge.
Symbol: arrow (pointer)
This sword acts as a +5 Longsword as well as has the below ability.
2 times per day, the Sword of Wisdom can be used to make decisions. Such as "Where can I find a wizard to help me on this adventure?" you point the Sword around until you feel a tingle, and then go that way. The Sword of Wisdom always makes the "correct" choice, but not always the path of least risk (this is the catch).