Erastone

This unnamed Teigu was used by Honest.

Abilities
The Teigu is shaped as a golden ring of average radius. When activated, a purple eye opens in its center, with black branching patterns appearing around the eye itself. Once its user chooses their target, the ring shines a bright light towards a designated Teigu, disabling and destroying the weapon. However, the weapon has a singular usage, as the ring's eyeball will shatter once its effect has been utilized. It is unknown if this ability can be reused or if the damage to it is permanent.

History
During The Revolutionary Army's rebellion, Honest used the Teigu against Leone to simultaneously destroy her Lionelle and his ring, but it failed to save himself even after fatally shooting the Night Raid member who crushed his skull several times.