Hoopa Unbound

Hoopa's Fury is the main antagonist of the eighteenth Pokemon movie, Hoopa and the Clash of Ages.

Background
Hoopa was once the benevolent benefactor to the residents of Dahara City, who gave him food in exchange for wishes. The villagers then decided to test Hoopa's power by challenging him to Pokemon battles. But then one day, Hoopa got carried away and began summoning legendary pokemon to further prove its strength. It was then that a traveling sorcerer, Ghris decided to use the power of Arceus to seal away Hoopa's power inside the Prison Bottle until he can learn to be more responsible with it.

Role in the Movie
One hundred years later, one of Ghris's great-grandchildren, Barza, finds the Prison Bottle in order to restore Hoopa's lost power, who had become a close friend to him and his sister, Mary. However, upon touching the bottle, Barza became possessed by the terrible fury that the power has built up over the century.

To be continued...