Twashtar

The Twashtar is a Cosmic Weapon belonging to Kana Korimachi. It's a staff.

Overview
Twashtar is a staff with the unique ability to turn a person against their allies via releasing light on them. Kana has stated that its impossible for this weapon to be used against him.

It can be used as is or through the King's Arsenal.

Trivia

 * The Twashtar is one of the Astra in Hinduism.