Trixie had a simple plan with few steps: buy the magical artifact, use it to get revenge on the town that destroyed her home and the entirety of her worldly possessions, profit. Of course, Trixie hadn't actually thought this through beyond the 'sweet revenge' part, but she was sure that the details would fall into line easily enough once she got the ball rolling.
And then she got the artifact, and decided... differently.
This is the story of how a single pony set fire to the bad writing of an entire region, purely by being one big spanner in the works.