That you for opening the discussion.
The Weapon I have come up with is a weapon for Spy. The Design of it would be a pen knife (if anyone who is reading this creates models and is interested, contact me. Thank you) It would be named something along the lines of "The Pen is Mightier than the Sword."
The knife will be able to face stab people. I know, I know, but it won't kill the people. The big thing about this weapon is that it blinds you, or sort of. Its open to discussion what it specificaly does, like a black form of jarate or a complete black out, or if it should affect ubered enemys, I'll leave that to you.
When you face stab a person, you only take a fraction of their normal health, say a 4th. The knife would have a cool down after applying the blindness, either becoming completly unusable or not being able to face stab people. This way, i can't be used to spawn camp. If you have any ideas, any thoughts at all, Please feel obligated to state them. Ill appreciate it. If you have read this far, Thank you.