Long ago, Arceus granted a fragment of its power as the Jewel of Life to help Michina in the town's hour of need, only to be betrayed when it was time for that power to be returned. After so many years, Arceus is about to return to reclaim its stolen power- enraged, vengeful, and seemingly unstoppable. Not even the combined might of Dialga, Palkia, and Giratina can stop Arceus from devastating all existence across the dimensions. But Ash and his companions, joining forces with their new friend Sheena, May have discovered the only way to redeem that ancient betrayal. Their journey will be both dangerous and uncertain: even if Ash and his friends can set an old wrong right again, will there be time to return the Jewel of Life before Arceus destroys everything and everyone they've ever known?

Ash meets the Mythical Pokémon Volcanion when it crashes down from the sky, creating a cloud of dust-and a mysterious force binds the two of them together! Volcanion despises humans and tries to get away, but it's forced to drag Ash along as it continues its rescue mission. They arrive in a city of cogs and gears, where a corrupt official has stolen the ultimate invention: the Artificial Pokémon Magearna, created 500 years ago. He plans to use its mysterious power to take control of this mechanical kingdom! Can Ash and Volcanion work together to rescue Magearna? One of the greatest battles in Pokémon history is about to unfold!

Ash and friends (this time accompanied by newcomer Dawn) arrive at an idyllic village on their way to their next Pokemon contest, where chaos will soon erupt with the prophecy of two Pokemon Gods (Dialga and Palkia) and the arrival of a mysterious, seemingly deadly Pokemon named Darkrai, which has the power to distort space and time. Written by Anonymous

When Diancie a Pokémon said to create diamond travels to find Xerneas to help her make a heart diamond to save her home, Ash, Serena, Clemont and Bonnie help her to be safe on the way from thieves.

A greedy, manipulative media mogul seeks to capture Celebi for nefarious purposes, using the shape-shifting Pokémon, Zoroark, to hunt it down.

On their way through the Battle Frontier, Ash and friends meet up with a Pokémon Ranger who's mission is to deliever the egg of Manaphy to a temple on the ocean's floor. However, a greedy pirate wants the power of Manaphy to himself.

After a scientific experiment leads to the creation of Mewtwo, he sets out to destroy the world. Satoshi and his friends then decide to thwart Mewtwo's evil plans.

A group of five Genesect have invaded the big city and pose a threat to the supply of electricity, which attracts the attention of the legendary Pokémon Mewtwo. Ash, Pikachu and his friends must come to the rescue when the powerful leader, a red Genesect, faces Mewtwo.

In the Forest of Okoya, Koko is a feral child who has been raised as a Pokémon by the Mythical Pokémon Zarude. Koko has grown up never doubting that he is a Pokémon even though he can't really use any sort of moves. Ash Ketchum and Pikachu meet Koko and help him protect the Great Tree from the crooked scientist Dr. Zed.