The current names of the Sisters are as follows. Please fill in slots which have not been filled yet.
Steel Hooves: The White Region
Crystal Blizzard: The Purple Region
Solar Flare: The Red Region
Topaz Glamour: The Orange Region
Roquefort Prancer: The Yellow Region
Harmony Blossom: The Green Region
Admiral Monocle: The Blue RegionSolstice Zen: The Black Region