Eibon's Grimoires (SERP Canon)

The Hunter’s Axe equivalent of a Death Scythe, Eibon’s Grimoires are weapons whose ninety-nine pre-levelled soul count consists solely of monster souls, topped off with a single witch soul to solidify the evolution. Upon reaching this level, all of their previous mutations are altered, changing into a full set of ten new, themed abilities, instead. At this point, everything about the weapon changes; their form, and by effect, their soul, literally become monstrous. Taking from the class’ announcement, a kusarigama, for example, could have its weighted end turned into a full-fledged wrecking ball. Purging the soul count of members of this class almost guarantees death.