Discord, the Spirit of Chaos, has been defeated, trapped in stone by the Elements of Harmony. The two newly crowned princesses, Luna and Celestia, scout his palace and find a vault full of treasures and wonder.
Amongst Discord’s greatest treasures, Celestia discovers a strange golden mask, almost insignificant to the naked eye. Celestia soon learns there is a history exists behind the mask… and the one inside of it.
Inside the mask is a being who was once a ruler in a time before time. His name: Mata Nui.

Disclaimer: I don’t own Bionicle or MLP: FIM. The former belongs to Lego, while the latter belongs to Hasbro and Lauren Faust.