Since the stats don't change on the blade, and the effect's description doesn't show any stats... how does one know the Blade has been completely upgraded through betrayals? The voice after the kill never says the blade is complete only, "excellent work child..."

What am I missing?

Anyone?

I think that the voice will let you know when it's complete. Haven't tried it myself yet though.

So the voice basically says two things? If anyone knows for sure a reply would be much appreciated.