Here is what is currently on my mind ...
Ghost / Fighting
95 HP / 82 ATK / 115 DEF / 78 SPATK / 90 SPDEF / 65 SPD
Adds up to 525 Total, I believe. I did the math in my head, so I could be wrong. A great ability could be Intimidate -- it goes right along with being a ghost, and could help it tank physical attacks even better.
With great stab attacks, it could afford the lower attack statistics. It could also afford to go physical or special, but not be overpowered and go with both. Additionally, it could not afford Close Combat because of lowering defenses and would be confined to Cross Chop or Force Palm. Shadow Punch is a relatively average attack, but it could gain access to Shadow Sneak. On top of that, it could go special with Shadow Ball and either Focus Blast or Aura Sphere. I think the *main* think I want, here, is it to be tank-like with a reliable recovery move! I guess Pain Split could do, but still, I want something besides Rest and Sleep Talk.