Mirror Mirror, handmaiden of King Thorax. Former concubine of Queen Chrysalis.
 
Mirror Mirror and her brother Thorax were the only siblings to survive the methodical culling and humiliation of their hatching. Their sister Broken Mirror had spared them for unknown reasons or simply hadn’t gotten to them yet. Chrysalis choosing Mirror Mirror as her personal concubine and handmaiden certainly helped.
 
Mirror Mirror led a pampered life as one of the Queen’s candies. She even got a bit chubby, a rarity for Changelings.
 
When Thorax and Starlight usurped Queen Chrysalis Mirror Mirror sided with her brother. As part of the new Changeling Kingdom she began to explore Equestria.
 
Somewhat shy and timid at first, Mirror Mirror is easily excited and has abundant energy. She did impersonate Pinkie Pie on several occasions to help her overcome some ponies’ prejudice against Changelings.
 
Mirror Mirror is quickly discovering that her talents as both a Changeling and a Concubine are filling a niche market in Equestria.