The Lord of the Rings: Aragorn's Quest

You will face against the Witch King near the end of Chapter 7, "Pelennor Fields". He'll be the big guy in black with a silver-pointy helmet, and he'll come down on a wyvern of some sort.

Note: If he does attack you, just pause it and go to the right-most tab then reload checkpoint, as it'll be the beginning of the battle.

My advice on beating this guy, in which I did and was able to kill him in under a minute, is stick very close to him and only hold with your shield to make sure he does not hurt you, because when you're blocking he can not hurt you, so just wait out his attacks and it'll come to a point where you can icon strike him with an Upwards attack, then a jab with , and it'll only take 3-4 of these to kill him. At one point he did a breathing attack which I could burn him with the torch, then jab him.

I then proceeded to finish him off asap with a full strength bar attack. The main goal here is to stick close and do not get cocky with hits, just block the hits and icon strike him when you get the chance, he'll go down quicker than you think.