alicorn attack celestia horn newer pose prance  fierce fleur newer prance unicorn  2012 crown cutie_mark equine female feral friendship_is_magic hair horn horse long_hair my_little_pony night pony prance princess_luna_(mlp) sky solo stars winged_unicorn wings xnedra22  alicorn armor blue_hair cutie_mark equine female friendship_is_magic hair hasbro horn horse long_hair mare_in_the_moon mikuhoshi moon my_little_pony night nightmare_moon_(mlp) pegacorn pony prance tail wings