All power demands sacrifice..

Through happenstance and bad luck, Twilight absolutely flubbed every single test of her friendship, saying all of the wrongs things to each of her friends. Locking herself away with her books, Twilight lamented having lost all inspiration to do anything for her friends, forgetting the beauty of friendship. To try to cheer her up, Spike went off to get a nice spiky book out of the old castle…
 
Princess Twilight Sparkle was powerful, and brilliant. This was not subjectivity; this was a fact. Perhaps even more brilliant than either Celestia or Luna. Inspiration struck; Equestria had never had a Queen. Surely, Twilight Sparkle was so brilliant that Celestia would not mind Twilight crowning herself Equestria’s Queen. Looking around at Ponyville, Twilight saw the foundations of a great capital city that would make Canterlot look like a ramshackle old stable.  
Delving into the very deepest depths of the Alicorn magic that had been bestowed upon her by Celestia, Twilight transformed Ponyville, the Ponyvillagers, herself. Thatched roofs became diamond battlements, villagers became armoured sentryhorses. But Twilight’s physique became sharp and erect, her forehooves splintering into fingers and thumbs, her build becoming less equine and more like the denizens of that weird world that Sunset Shimmer had fled to. One shortcoming of being a quadruped was not having hands. Equestria High had taught her that much. Now, she was the perfect ruler, capable of writing proclamations with hands, while holding a rebel down under her hoof, while using her dwimmer shimmer to handle the axe by which to behead them.  
Standing tall amongst her army, Twilight Sparkle proclaimed the downfall of the Equestrian Duumvirate, and the rise of the Empire of the Equinox!

Sure. I’ll just use Dark Magic this once. It’ll be for a reason that’ll help people and do a lot more good than harm. That’s what you tell yourself the first time. Just this once and you’re never using it again. Unless the situation becomes dire again. And then you might have to dip a little deeper into the darkness. But that’s okay. You’re still in control right? You’re just using your bad emotions like a tool. You don’t actually feel those things…
 
But then you realize how much easier problems could be to solve. And people will be happier afterwards! They’ll understand… you’re the good guy, after all.