Midnight Sparkle

Midnight Sparkle is a character from the series of movies, Equestria Girls. She is a corrupted version of series's former main protagonist, Twilight Sparkle (Sci-Twilight). Midnight can be described as hungry for knowledge. She would destroy anything that gets in the way of her understanding magic, as shown by the Friendship games, where she starts to tear apart Canterlot High to get to Equestria. She is cocky. She believes that she can have anything that she wants, which is true. She seems to be an alternate personality altogether to Twilight, who has a hard time overcoming Midnight.