Sigil of the Unseen

Sigil of the Unseen is sold by Ve'nari for 666x Stygia at her refuge in the Maw for players with an Tentative or higher standing with her.

Trivia
During the beta, this item was renamed from Soul-Stabilizing Salve. It initially had the following flavor text "Rub the paste within the sphere onto your skin, permanently reducing the duration of the Tormented Soul effect when applied by Assassins."