I tend to agree. It's a class with a lot of potential. It could be great. But honestly, Soul Knife and Mystic both feel incomplete to me. As I'm reading through them, I keep thinking, "You're basically describing a psionic monk and everything you're describing would function better if they were built as a subclass of monk." Mystic is essentially a caster class without a catalog of spells. Soul Blade looks like something that would originate from the Githzerai. I think it even says that in the description. So once again, why wouldn't it be more monk-like and less fighter-like?