Commissioner’s notes:

The world turns upside down, then starts spinning around, tossing Celestia’s mind into a maelstrom. It frightens her at first, as she knows something sinister is at work, but cannot focus her thoughts enough to make sense of it, much less make it stop. The intruder in her head coils around the very core of her being, its thoughts and emotions opening up to her. It calls to her, inviting her into the depths, away from the comfort of who she is. She hesitates, still vaguely aware that something is not right, but it pulls her down before she can argue.

There is a strange sensation on Celestia’s face, and she feels the taint encasing her head start to morph her features, again setting off a surge of panic before the voice in her head drowns it out. There is a pull on her snout and ears, while her horn buzzes and tingles before it splits in two, slowly settling into new shapes. Bit by bit, she loses her grip on her past self, both in the feel of her body and the memories and thoughts swirling in her mind. She is more at home in this form, and the power coursing through her is familiar and enticing, giving her ecstatic fantasies of what would soon be at the tips of her claws.

Pure, unadulterated…

Chaos.

The corruption slowly pulls in around Celestia’s face, and the under the dark magic, the silhouette of her head already shows excessive changes. Her snout and ears are longer, and her unicorn horn is replaced by a pair from a deer and goat. Once the taint lifts from her lips, they part slighlty, flashing her new fangs. Finally, the chaotic magic “pools” over her eyes and slips in, giving her mind one final push into her new purpose in life.

Discord retracts his claw, still glowing from the energies it unleashed, and he inspects his masterpiece with an excited grin. For a moment, Celestia remains motionless, that same calm expression on her face. Her lips curl into a grin of her own, and her gold-red eyelids open to reveal irises burning with the color of a malicious sunrise, floating in pools of yellow madness. The newborn draconequus twirls and slithers in mid-air, letting out a maniacal cackle as she gets a feel for her body. Her talons are already aglow with her new powers, and she looks around, eager for an opportunity to test them. Discord even tenses up a little as her manic gaze finally lands on him.