Sunset shimmer

She was the main antagonist in mlp equestria girls. Who later reforms and became protagonist in both rainbow rocks and friendship games.

in the adventure series. She is part of team rainboom. But back when she was evil. She betrays chase young and uses the crown on herself to gain ultimate power. But after her defeat. She soon sees the error of her own ways. And is nice, polite, kind and gentle towards her friends and everyone else. She is even in a romantic relationship with wander.