Many of those who enter the shadowfell have their own problems. Countless have been corrupted into sorrowsworn from their own misdeeds and flaws. One creature roams these planes to bring judgement to the depraved ones of the shadowfell. And those beings deliver it mercilessly and swiftly.
Clad in nothing but an apron and massive metallic pyramids masking their heads. Judges drag colossal butcher knives with one hand and strike with blinding ferocity. Able to cleave through stone and flesh deceptively fast compared to how slowly they are normally when marching blade in toe.
Judges are the pure condensed form of all guilt and unfulfilled justice within the shadowfell. Acting as the judge, jury, and executioners of those they find consumed by guilt and unable to cope with.