Pinkie Pie has turned evil. not the biggest threat to be honest. I mean, they just defeated Twilight Sparkle, how could Pinkie Pie be any harder to defeat? Besides, she's still Pinkie Pie, and even though Twilight Sparkle is still slightly evil after that dark spell, Pinkie Pie can't be a challenge unless there is any outside influence... And there's none of that... Right? And even with that, Twilight Sparkle's on our side, and nothing can stop her! And she's still on our side... Right? Anypony with me?... Anypony?