My Very Own, Super OP, Virtually Ageless Character!! :D

So I've been thinking, and as unique as my OC is, I feel I need to have a pretty OP character under my belt as well. She'll be used rarely, and she's really being built for a fanfic I'm going to write, about Princess Cadence. This blog is basically for me to figure out this character, and will prolly go under a lot of edits.

Name: Azeztulite
Race: Crystal Pegasus
Class: Guard

Appearance: Taller, stronger, and leaner then most ponies. Her flank is a milky, pearly white, almost tranclucent. Her mane and tail are very long and gently waving, a similar color to her fur, yet brighter and with a slight glitter. Her eyes are liquid silver, she wears ancient blue dragon leather and silver armor, and a long flowing cape trimmed in fur and colored deep violet.

Story: Azeztulite is a creature born of magic and ponyflesh; she was once a true pegasus long ago, serving as a commander under the first Crystal Queen. Her loyalty and prowess proved her abilities, and she was chosen to become the eternal guardian of the Crystal Kingdom and most importantly, ultimate protection for the heir of the throne. She was reborn through magic and was bonded to the Crystal Heart, to become immortal, extremely powerful, and bound to her ties to the Crystal Queen. She would never be allowed to abandon her service; however, if there were ever a King, she was to sink into a slumber until the throne was occupied yet again by a lone Queen. Henceforth, during Sombra's reign, she was cursed into a deep sleep. Now that Princess Cadence has regained her lost throne, and is married, Azeztulite is free from her coma, and can return to her service to the throne of the Crystal Kingdom. Because of Shining Armor's presence, she isn't limited to the Queen's side at all times, and can now roam Equestria and learn about how the land has changed to better serve her Kingdom.