My name is New Moon. The nobleponies of Equestria, however, know me as the Black Death. That's because I am a thief- one that steals, not their easily replaced gold and jewels, but something much closer to their hearts- something irreplaceable.

In return, I give their treasures to down-on-their-luck ponies, especially those who have been oppressed by said nobles. My work is risky, but I won't stop until the nobles change their ways, until they realize I can make their lives hell no matter how they manipulate government or flaunt their cash.

In other words: I steal from the rich and give to the poor, and nopony will stop me.