Giant's Eye Amulet

This amulet is made from a polished stone that resembles an eye, believed to be the remnant of Eye of Asthyr's uncanny strength. When worn, it grants the wearer advantage on Wisdom (Perception) checks and allows them to see invisible creatures within 30 feet, as long as they are not hidden. However, every time the amulet is used to enhance perception, the wearer has a 25% chance of being subjected to a moment of overwhelming insight that raises doubts about their own abilities, imposing disadvantage on their next intelligence-related ability check.