My Little Pony? Anyone? I really need help...

[kianspo]

Hey guys, is anyone around here familiar with my little ponies? I need your help. My niece wants one for New Year (you can think it's for Christmas), but I can't find the one she wants. Last time it was Princess Celestia or some such shit. That one I did find. This time, all she knows is a Russian name, and my Google-fu fails me this way and that because the one I found wasn't the one she wanted (by her parents description). Anyway, it's called something like 'Moon Mare' or 'Midnight Horsey' (or Nightmare, frankly) or something. It's supposed to be dark? I think? With stars in her eyes and some kind of horn?

Does anyone know what this monster is supposed to be really called?

Guys, guys, you have to save me! I can't sit here WATCHING the bloody episodes! I'd go certifiable in no time at all. Yes, more than I am already.

Please? Obi Wans?