Tome of Life's End

A forbidden tome that can only be read by the inheritor of the Sigurd Scythe, a royal heirloom. It contains the lifespans of all Humans born and raised in Tartarus. "O guide of the most noble goddess, I beseech you—lead my soul into the eternal cycle."

When attacking, increases damage dealt by ?, and if a non-critical hit is made, deals additional damage proportional to the caster's Attack to the target.