Habits Die Hard

[Kenpachi Zaraki]

I really like Deadpool's idea. I also enjoy the idea of the secondary occasionally 'dying', leading to you having another sap take up the sword and become overwhelmed by the sword's personality. Some pretty great comedy could come of it.

And I wouldn't worry too much about coming across as cheesy. Odds are it's just the writer over-analyzing the work, I do it all the time.

I agree with this.

you could become some type of infamous weapon. Cursed, even.

Yes! Sorta like this dimension's Soul Edge. You could get telepathy and warp the mind of the person that wields you, like the One Ring.