Gandalf Vs. The Witch King

Originally Posted by Finduilas

On Merry not needing an enchanted blade, someone told me once that Merry, and for the same reason Eowyn, was able to kill the Nazgul because he wasn't a man. He, or she (I can't remember who I was talking to), thought that when the Witchking said no man can kill me, that he meant that only women or other races could.

Just thought I would add another explaination. Maybe that's what PJ thought

Does that mean an Oliphaunt could kill the Witch King? The theory is only a prophecy, not a fact.

A woman was needed in the story to give some noble credibility to women in Middle Earth. Otherwise women would be seen as the maids & housewives, & not the brave, noble cavalry sort which few could yet demonstrate. The killing of the Witch King in the manner of a woman also makes him look very foolsh of his overconfidence, even severely over-rated as an opponent. A good example of machiavellianism.