She was the Yellow Ranger MMPR and followed her counterpart's original timeline, until Lord Drakkon's full defection to the side of evil.  Lord Drakkon is the super-villainous, tyrannical, & evil older counterpart of Tommy Oliver who hails from an alternate reality where he reigned over a technologically advanced, dystopian Angel Grove as its oppressive ruler with his army of Ranger Sentries whom he made from her and her teams's power coins.