Umarak, The Hunter - LEGO Bionicle Character Spotlight

Millennia ago, when the Elemental Creatures came into being, the shadows gave birth to a terrible fiend whose sole purpose was to hunt the Creatures, to trap and bind them in darkness and drain them of power. He is known among the Protectors as Umarak, which in their tongue means ‘Shadow Hunter’. They fear him greatly and pray that the Toa will be strong enough to confront him. Should the Hunter ever track down the Elemental Creatures, Okoto’s very foundation will be threatened with destruction.

Learn more about the Toa and their quest here: http://www.lego.com/bionicle