Originally posted by Maikahyandowen
what's wrong with merry stabbing him in the leg? he's a hobbit, how much can he do?
The sword Merry had was from the Barrow-downs and it has the ability to make a Nazgul mortal. So when Merry stabbed the Witch King with it, he actually made him mortal. And then Eowyn gave the final blow.