Megas

Originally it was just gonna be a Rarity, RD and AJ episode where Rarity is worried about the competition on the Saddle Row(due to Suri screwing her over), and since they're competitive ponies, RD and AJ suggest Rarity gets more aggressive with her business, but she takes it too far and starts a fashion war with the other business. It gets to the point where they're trying to sabotage each other, and at one point Rarity ends up sending them on a cargo ship to a far away land, and RD and AJ try to get her to call it off. Even after sending the competition on a cargo, she tries to apologize only for the other fashonistas to come back with tons of exotic materials and it all works out in the end