Pokemon Movie 08: Mew to Hadou no Yuusha Lucario

Centuries after the Aura Guardian Sir Aaron ended a war around Camaron Palace, Satoshi wins the festival tournament held in his memory. During the ceremony, Lucario emerges from Aaron's staff after a long sleep, convinced that the master he trusted abandoned him.

When Mew takes Pikachu and Meowth to the mysterious Tree of Beginning, Satoshi needs Lucario's knowledge of Aura to reach them. Their journey forces Lucario to confront the truth of Aaron's final actions while the living structure of the Tree itself begins reacting dangerously to the intruders.