Drekaz

'Drekaz was an Av-Matoran, though was later transformed into a Shadow Matoran.

Biography
Vanak was created by the Great Beings to aid in the construction of the Great Spirit Mata Nui. Vanak and the other Av-Matoran left their homeland under the Southern Continent to colonize Karda Nui. The Av-Matoran returned to their homeland in the caves below the Southern Continent before the awakening of Mata Nui.

During the Great Cataclysm, the Av-Matoran homeland was damaged by the resulting earthquake and part of it fell into Karda Nui. This caused the Stalactite Villages to form and Vanak took up residence in one of the villages for more than a thousand years, adapting to the hardships that the new lifestyle presented.