The Witch-King of Angmar is the greatest general of the Dark Lord, Sauron. He is a minor player in the second Disney Vs Non Disney Villains War.
Disney Vs Non-Disney Villains War - Part Two
Defender of Mordor
Both Gothmog and the Witch-King of Angmar stay inside of the realm of Mordor, since their master, Sauron, is imprisoned in the tower from within. They later recieve a visit from Saruman, who joins their forces to repel his enemies.
Disney Vs Non-Disney Villains War - Part Three
With the beginning of the third war, the spirit of Sauron adresses to his minions, as he prepares them for the later events, including the Witch-King of Angmar. Meeting with Gothmog, the Witch-King sends the Nazgûl to investigate through the realm of the Enchanted Forest, feeling the source of the One-Ring hidden inside of it, despite that the land is a territory of the wicked queen, Regina. To his mistake, the Nazgûl drow in the sea waves, which Regina summon to take them out.
Demise by a Wicked Queen
When the time has come, Sauron alerts to his minions to be prepared for the next attacks, including the Witch-King of Angmar. Later, the armies of Sauron attack the forces of King Miraz. The King gets a significant role in the battle, as he challenges Miraz, personally. While he loses his fel beast, the Witch-King of Angmar still doesn't give up and continue to counter attack at the king, eventually strking him down with a powerfull strike from his mace. Upon killing him, the Witch-King confronts the wicked queen, Regina. While he taunts her that no man could ever kill him, this mockey proves to be his undoing, as Regina is a female warrior. The Witch-King is helpless, as Regina draws a sword to the King's helmet, causing him to reduce to ashes.
Heroes Vs Villains War
The Witch-King of Angmar is briefly featured in the last stages of the war. During the siege at Nekron's castle, the Nazgûl, along with the Orcs and Uruk-Hai, spot Taran, under the possession of the One-Ring, and chase after him. However, Taran opens a rift, through the blade of the Drynwyn sword, unleashing tremendous waves of water upon Saruman's army, sweeping away both the Nazgûl and the Witch-King of Angmar. He is not seen again.