Hydraxon
Hydraxon is the powerful armored figure assigned to guard the Pit and now he's after the Barraki! A master of every known weapon, he's armed with boomerangs, wrist knives and a Cordak blaster. Runners don't have a chance when Hydraxon's on their trail!
The real guardian of the pit was destroyed nearly a thousand years ago, but the Mask of Life transformed a Matoran, Dekar, into Hydraxon.