This is how Nyx vs Nightmare Nova goes in My Little Pony Transformers: Return of the Jedi.
[We see Nyx watching space battle going on outside]
[Nyx blocks a few strikes]
[Nightmare Nova falls to the floor as Nyx aims her Keyblade at
Nightmare Moon: Good.
Nightmare Moon: Your hate has made you powerful. Now, fulfill your destiny and take your mother's place at my side.