the shadow sword

[Shade]

I noticed the word "forerunner" coming up on all definitions of harbinger... this is probably another irrelevant point, but if it isn't, you can make a connection between the harbinger and the forerunners(anyway, it's still probably an irrelevant point). It's still a pretty odd coincidence.

[Sage Of The Wise]

Thats been found before, but other then that they arn't connected in any way we know of yet.

[DSOK]

Given what fwacho has said about the care with which Lun and he choose names, I find it highly doubtful that this could be a coincidence. On the other hand, I cannot fathom why they chose to coin the term "Harbringer," which I just took for a typo when I first played the game.