Song: http://www.mediafire.com/download/w4sn8bw87ewn11d/Duel+With+Princess+Dark+Matter.mp3

I made a boss theme of an OC villain named "Princess Dark Matter". She is created by Omega Brony, and she has a magical ability to take a cutie mark from a pony, and increases her power, and strength.  The battle has begun between Twilight Sparkle and Princess Dark Matter.

MLP by Hasbro