“You may think you’re god, but I know I am sin.”
Ragelight is the embodiment emotion of Stormbow’s wrath made real. It is not a spirit of any kind, even if given a physical form with sentience.
She’s worse, and far more powerful than, Midnight. One of Stormbow’s lieutenants who rules the circle of Wrath in Hell, summoned by Nightmare Moon and Daybreaker in an effort to twist Twilight to their will and serve as their enforcers. They succeeded in injecting the beast into Twilight, then saught immediately to subdue her with force and make her serve them.
…
They didn’t stand a chance. Summoning Ragelight and embedding her into Twilight only twisted her into Darklight and subsequently granted her more than enough power to inflict her vengeance on those fools for such a feeble attempt to control her.
—–
“If there’s a time where you can walk away unscathed, it’s the first minute and six seconds. Treat it like a timer on a bomb; once lost, you’ll realize just how precious that time really was when she’s not destroying you for all eternity.” - Stormbow, informing about the monster Ragelight.
Luckily, Twilight is still in the driver’s seat. Time will tell if she succumbs or not.
See the link for more information.
The story’s in the deviantart link.