My Little Pony: Friendship Is Magic Season 4 Episode 25-26 Twilight's Kingdom (Part 1) - (Part 2) >As Tirek continues to drain ponies' magic, the princesses give Twilight their own magic so as to hide it from Tirek, who is unaware of Twilight's existence. Tirek captures the other princesses and, learning of Twilight, turns towards Ponyville. There, he drains the power from Twilight's friends and betrays Discord by stealing his magic as well. Twilight faces off against Tirek in a destructive battle that ends in a draw. Tirek offers Twilight the freedom of her friends in exchange for her magic, to which she agrees by ordering Discord's release as well. Remorsefully, Discord gives her a medallion he had received from Tirek in mock alliance. The medallion becomes the final key needed for the chest. Twilight and her friends open the chest and it bestows them with a new power that allows them to reimprison Tirek, free the princesses and restore everypony's magic. The chest then transforms into a new castle for Twilight to reign alongside her friends as the Princess of Friendship.