Erastone

Erastone is a crown Teigu wielded by Honest. It is also called Anti-Teigu.

History
During the Revolutionary Army's rebellion, Honest used Erastone against Leone to destroy her Lionelle after she attempted to charge at him.

Abilities
In the manga, Erastone was shown to be Honest's crown. When activated, the center opens and a light shines on to the opponent in range and destroys their teigu. It has a weekly usage.

In the anime, Erastone was shaped as a golden ring of average radius. When activated, a purple eye opened in its center, with black branching patterns appearing around the eye itself. Once its user chose their target, the ring shined a bright light towards a designated Teigu, disabling and destroying the weapon.

Manga & Anime Differences
Erastone
 * In the anime, the weapon had a singular usage, as the ring's eyeball would shatter once its effect had been utilized.