Luna Aethera

Princess Luna is one of the rulers of Equestria's diarchy alongside her older sister, Celestia. Though she has less control of the Royal Guard than her sister, she has free reign over the mighty Dread Knight division. She and Celestia reside in Canterlot Castle.

Appearance
As an Alicorn Luna stands taller than most ponies in Equestria. She is shorter and slightly stouter than her sister and any tall stallion can match her in height, not counting her horn. She has a dark-blue coat and a platinum-blue mane with wisps of a sapphire aura flowing out of it. Her eyes are cyan. Her cutie mark is a crescent moon. She often wears her regal attire: A set of pale-blue metal slippers, a thick, black necklace and a small, black tiara. Luna's horn is bent and blackened as if burnt, and her wings look far more ragged than Celestia's.

Personality
As she is currently unable to speak, not much has been revealed about Luna's personality. While telepathically communicating with her sister, Luna displayed an authoritative personality, focusing on the practical use of Twilight Sparkle's abilities rather than her value as her sister's personal student.

History
At some point in the distant past Luna and her sister became the rulers of Equestria.

One-thousand years ago Luna became Nightmare Moon, a being who vowed to shroud the world in eternal nighttime in order to force the ponies of Equestria to understand the beauty of its darkness. This marked the beginning of the War of the Night, ending in Nightmare Moon being sealed in the Moon. This lasted for exactly one-thousand years until Nightmare Moon attempted an invasion of Equestria during the Unscheduled Night, during which she was turned back into Luna by the Elements of Harmony.

Abilities
As an Alicorn Luna presumably holds great magical capabilities. As the Night Queen she possesses a direct link to the Moon and the chaotic power that emanates from within. Her magical nature and Thaunuclear Force Rating are both unknown.

Moondust
Before the story begins, Luna returns to Epona as Nightmare Moon and is subsequently destroyed by the Elements of Harmony. Luna spends the next three weeks recovering from the injuries the transformation gave her. On the 14th of July Celestia takes her on a tour of Canterlot, during which she has the chance to meet her sister's prized pupil; Twilight Sparkle. After Twilight fails to display adequate skill, Luna leaves disappointed.