Chatkcha

A chatkcha was a type of exotic throwing weapon invented by the thri-kreen and unique to them.

The chatkcha was a kind of throwing wedge with three piercing points, fashioned from crystal. It could deal critical injuries to a target, and was effective to 20 feet (6 meters). A warrior needed to be highly trained to use one, but it was much more familiar to the thri-kreen.