Well aren’t you a analytical MoFo!?

@Etherchanter  
Yes, it was moved from Canterlot to The Empire.

@Etherchanter  
Not as far as I know. Given that the Empire had the Crystal Heart, it seems reasonable to assume that it has artifacts of its own.

@Sjogre  
Hadn’t the mirror recently been brought to the Crystal Empire? (I might be wrong here).

@Starswirl  
Here’s the bigger question: If the portal used a mirror in the Crystal Empire, how did she go through it in the first place?

@Starswirl  
XD

@Etherchanter  
That got a chuckle out of me! Seeing as how that ship has died long ago, it would be “late Bloomer”, eh?

@Starswirl  
The second one, although the first one is good.
 
…how ’bout Bloomer?

@Etherchanter  
The first piece or the second?^^
 
And what would that ship even be called? Blueshimmer? Sunblood?

@Starswirl  
Oooooooh! I like that!

@Etherchanter  
Maybe Blueblood’s a dismissive coward toards mares because his ex, Sunset Shimmer, was abusive and power-hungry… wouldn’t that be weird..?
 
How about this: The last time the portal was open was shortly after Twilight et al defeated Nightmare Moon. Sunset Shimmer, confronted with Twilight earning all the fame and glory she unknowingly gave away when she quit being Celestia’s student, snaps and leaves through it. In the human world she stirs in her anger and loathing, until after 30 more moons the portal opens once more…

@Trickquestion  
Depending on how long the portal remained open and the lapse of time before she stole the crown, she might have had enough time to gather enough intel to discover its existence and location?  
I’ve only watched the movie once and can’t recall those 2 details.
 
…Maybe she beat up Blueblood… XD

@Etherchanter  
You know, I actually forgot that bit about Magic having been a mystery at first. Which just makes this whole thing even more incoherent. I doubt Celestia would have just told her, that seems wildly out of character for her.

@Trickquestion  
Exactly. But I must assume that the sixth element is unknown at the time SS originally left Equestria because when Twilight reads about them in the “Elements of Harmony” book in S1E2, she reads: “There are six Elements of Harmony, but only five are known: Kindness, Laughter, Generosity, Honesty and Loyalty. The sixth is a complete mystery.” (and other such references in that episode).
 
I don’t think that SS would’ve been able to discover the sixth element because it took the actual bearer to figure it out.
 
…Unless Celestia told her, but I consider that the easy way out… :)

@Etherchanter  
Presumably she read about in the same book Twilight did. But of course, that would mean her first move would have been to go straight to the Everfree…

@Background Pony  
True but that’s part of the fun, right?
 
I have one question:  
How did Sunset Shimmer KNOW about the Element of Magic when it wasn’t known to exist prior to Twilight’s rediscovering it when she defeated Nightmare Moon?
 
It doesn’t look like she had a lot of time to research it when she came back to Equestria…

I think all y’alls are applying far more thought to Equestria Girls than McCarthy ever did.

Going from a respected position like the personal student of Celestia to being treated as some kid off the street alone has got to be upsetting.
 
Spending years deprived of her powers, her history, and even her very body was probably not healthy.
 
Which still doesn’t explain why she went to the human world in the first place, but why her mind seemed to go downhill is hardly surprising.

hahaha you are giving too much credit to that stupid movie and cliche villain

An interesting theory, but I can’t entirely agree. If you look at the photos of Sunset in Principal Celestia’s office, you can see a descent to power madness. The first year she was voted princess, her look is of pure innocence and joy. I find myself wondering if she just couldn’t quite take the responsibilities of being Celestia’s student, and fled through the mirror for a simpler life. Then, she let the power go to her head.

@KirbyfanNeox  
I do. I give her a week before she cuts the principals throat and runs away from whatever underwhelming punishment they stuck her with.

I like this headcanon. It’s better than ‘she’s just a bitch for no reason’.

Incidentally, does anyone else think of Sunset Shimmer as an unrepentant psychopath who would gleefully murder everyone at school and maybe even rape her ex-boyfriend once the portal closed and Twilight left?  
No? Just me?

Your headcanon is wrong.

THE LEVEL HEADED LOGIC- IT BURNSSSSSSSSSSSSS