It's true that the Pillars saved Equestria from many dangerous threats back in their day. And going off of just a select few examples, it seems their routine was always the same: Find a foe, combat it, and banish it to another realm. But Meadowbrook will be the first to tell you that was not always how things panned out. She recalls one particular threat that she approached in a different way; a way that Starswirl didn't approve of at the time. But given what happened to Stygian, perhaps her method was superior after all...