Because there’s been a couple people asking about Cenoaion, who is the main antagonist in that one story I keep mentioning. I hope I can write it someday XD
 

 
Cenoaion is is the younger brother to Celestia and Luna. However, he was a stillborn birth, and since his soul was never able to be born into the living world, it was sent to the Underealm, which is a limbo for lost souls. There, his soul continued to age like that of Celestia and Luna, being they are a sort of Demi-God. He watched the world flourish and thrive while he remained below, forgotten and bitter. He was the one who sent the dark energy into Luna, turning her into Nightmare Moon, hoping that the seperation of his sisters would weaken the hold of the boundaries. Even when the failed, he gained his chance when Discord arose. Once back in the world of the living, he sought out Celestia when calm returned, and killed her, which then allowed him to absorb her soul and regain a physical form. He then turns his sights on Luna, needing both of them, AND all six Spirits of Harmony to fully shatter the barrier seperating the Underealm and the living world. This would then bring his desire of showing the residents of Equestria what he has suffered his entire existance, and drive every soul into a state of isolation :3
 
He has a color scheme that resembles dusk, since he was supposed to be in charge of the hours of Twilight, where he would then guide the souls of the departed to their restful afterlife. Obviously, that task was given to Celestia and Luna respectively.
 
His powers include the ability to absorb the souls of those he kills and gaining their abilities and manipulating the life energy of the deceased. Being born into the Underealm, he also regenerates after taking physical damage. The only way to truly hurt him is for someone with a Spirit of Harmony to attack his soul directly. When faced in combat, he wields two large scythes (I like those, being Aislinn uses the same weapon XD) He’s rather cold hearted, often joking at the pain and anger of those he hurts, and tends to repeat the phrase “Now you know what I’ve felt” as often as possible.
 
Also, I forget what origin I used for it, but his name basically means “New Life”