The Soulknife was my favorite class concept when I only knew about the 3.x games. I emphasize concept there because the actual mechanics of the class were hot garbage. It was described by some as a straightjacket that would ruin any build (I know), it was purely combat based with poor stats for combat and a core ability that neither meshes well with any other class nor outperforms the magic equipment you should technically be getting as you level, according to RAW. So I redesigned it with GLO...
