The Logrusfoil Vengeance was, like its companion blades, forged by Dios for one of his children. He bestowed it upon his son Saul, founder and first Lord of House Helgram. It has since then passed from Lord Helgram to Lord Helgram until reaching Loewen, the current Lord Helgram; it will presumably one day pass to his son and heir, Sousuke.

Vengeance will place a blood curse on anybody who kills its bearer, and will pursue said killer through shadow in an attempt to slay them.