8904 Avak is a BIONICLEset released in early 2006. It contains Avak, who was one of the Piraka. He has the ability to make the perfect type of prison/cage for an enemy out of thin air. He was part of the Dark Hunters organisation before becoming a Piraka. He then went to Voya Nui with the other Piraka to find the Kanohi Ignika. Pushing hard on the rubber piece of his launcher will fire a sphere.
The most talented engineer among the Piraka, Avak can make a tool or weapon out of virtually anything. He can use his X-ray and telescopic vision to seek out foes and then create a perfect prison from thin air to hold them! If it comes to a fight, Avak can rely on his zamor sphere launcher and his seismic pickaxe/jackhammer combination.