Brutaka

Once he was a loyal guardian of the Matoran and Axonn’s best friend, but now he has turned evil! Powerful enough to defeat six Toa with one blow of his double-bladed weapon, Brutaka alone is as great a threat as all the Piraka combined! He wears the Kanohi Olmak, the Mask of Dimensional Gates, which can be used to transport a target to another location or even into another dimension!