To be honest, it is not confirmed that the dead army was powerless. Gimil simply said that he didn't know if their blades would do harm anymore, but they inspired enough fear that they didn't need them.
Being a "supreme undead" of sorts, I don't think that the Witch-King could be harmed by the King of the Dead, especially if the King could not attack after all. However, the Witch-King may not have been able to damage the undead king either.
So, unless taking in a deep breath and blowing out would scatter the King of the Dead to the wind, it's a draw.
__________________
"And forth went Morgoth, and he was halted by the elves. Then went Sauron, who was stopped by a dog and then aged men. Finally, there came the Witch-King, who destroyed Arnor, but nobody seems to remember that."
-A History of Villains
|