Pokémon XYZ - Episode 48

In this episode, Professor Sycamore and Alexa examine the legend of the Maiden Statue, the stone statue of a woman named Aila.

Long ago, she was the love interest of a man named Jan. After hearing Oracle Olympica's prophecy that the Legendary Pokémon Yveltal would descend to destroy their land, Aila's father, the village's chief, ordered Jan to defeat Yveltal in exchange for his daughter's hand in marriage. Aila tried to stop Jan, knowing how dangerous and foolish that was, but to no avail.

Once Jan set off, Yveltal's screech warned them both of its sudden arrival, staying impervious against Jan's multiple attacks. As Yveltal was ready to fire its Oblivion Wing, Aila jumped in front of Jan, sacrificing herself as she got turned to stone.

Despite Jan's best and desperate efforts throughout his life to find Xerneas and revive her, she was never restored back to normal and remains as being a stone statue forever.