Eye of Tyr is a pommel gem which can be used to upgrade weapons of virtue. The weapons it can upgrade are Carsomyr and the Purifier. This item appears in Baldur's Gate II: Throne of Bhaal and Baldur's Gate II: Enhanced Edition.
This item is found in Sendai's Enclave in the room of the lich.
|“||A gift from the God of Justice, this pommel gem gleams with a holy fire. If the burning stone were to be set into the hilt of a weapon of virtue the result would be a blade capable of carving a righteous swath through all the evils that plague the Realms.||”|