Correction, abuses the living fuck out of them.
Twilight Sparkle is your regular unicorn mage, and one day she stumbles upon what seems to be a cache of energy weapons stored there by some friendly passerby. Definitely did not fall from the sky because of a meteor.
Read: Plot convenience.
And upon discovering them, she knows what she must do.
Take over Equestria so no one else would dare to use them to harm anypony else.
It's not like she could destroy them or anything, right?
The story is complete, two chapters releasing a day. I will not reveal how many chapters there are in total yet.
And by PresentPerfect's advice, I will not write stories like this by multiple stories in a series! It is multiple chapters in one story! WOOOO!