Either Celestia decided to make use of Daybreaker, or this is the same one from the nightmare knights arc. If the latter, it appears that Nightmare Moon may have survived after all.

@Prince Ecosis  
I see.

@Red-Supernova  
Yes. I created Ecosis’ backstory long before the finale, like about after the movie came out, so I kept it how it is.

@Prince Ecosis  
So this is from an AU not connected to the Season 9 finale?

@Red-Supernova  
Prince Ecosis formally lead a war against Celestia after she began heavily neglecting him in favor of her Unicorn students. He unified changelings, griffins, and dragons against Equestria and the war waged on for centuries.
 
After her failure in the Canterlot Invasion, Ecosis viciously beat her in anger, enraged that Chrysalis had Celestia and Equestria in her grasp, and then let everything slip through her hooves. After beating her for several long seconds, he stole her magic from her, leaving her a weak changeling unable to feed her hive. But, before he dropped changelings from his Alliance like he did with the dragons after the Dragon Lord at the time backstabbed him, his skunk assistant, Abigail the Beloved (the skunk in the candy bowl), helped him regain his sanity good enough for him to apologize, return her magic to her, and continue working with her until he eventually surrendered. They would go on to marry each other after Ecosis would convince her to come to the good side.
 
So, Chrysalis doesn’t need any restrictions or someone constantly watching her. Ecosis keeps his wife in check every day, and Chrysalis obeys him every time he tells her to do something.  
(I can private message you Prince Ecosis’ full backstory if you’re interested.)

@Prince Ecosis  
How did she trigger his bad side?

@Red-Supernova  
She doesn’t need restrictions. She doesn’t dare cross Prince Ecosis, as she’s seen his bad side after her failure in th Canterlot Wedding Invasion. So, as long as Ecosis gives her the love she needs, she’s fine with keeping evil out of her lifestyle.

@Prince Ecosis  
You sure? I think she would have to have some restrictions on what she can do now that she’s on parole.

@Red-Supernova
 
@TheKman100  
Don’t worry guys. Prince Ecosis keeps a nice eye on his newly reformed wife. And she can still change appearances. ;)

@TheKman100  
“Oh, that explains the guards watching us from behind.”  
“groan Yes, I have to be monitored at all time until I make “progress”. My ability to change appearances has also been disabled as well.”

“I thought you were a stone statue in the Canterlot Garden. Why are you here now?”  
“Well, batty as Discord might be, he did offer the idea of a centennial parole.”

One of the best commissions I’ve ever asked for! I love this! Happy Nightmare Night!  
(For those confused, the black Alicorn is the evil version of Prince Ecosis, my nature-controlling OC.)