Yintral

Yntral was a member of the Order of Mata Nui and a friend of Kakamu during his days at the Order. He was biomechanical, though of an unknown species likely native to the unexplored islands of the Southern Continent. He was blue with four arms and silver armour, though he didn't really need it as he spent most of his time tinkering in his lab inventing new technologies to benefit the Matoran Universe instead of going on missions. One of these technologies was time travel, though as the Great Beings ruled that the Order should not have access to such power, they appeared in his lab and destroyed it all apart from one example - a cylinder with a button that could pluck anyone from time and space and deposit them in the present day, as long as the wearer was thinking about that being. Because the GBs had destroyed its power supply, it could only be used once. Yntral gave it as a gift to Toa Kakamu.

Yntral also invented the XK series of robots for use in any wars the Order should get into. He made six prototypes, XK-1 through 6. During the GBs' ransack of his lab, they also took XK-1 to 5, as they saw potential in the robots. The designs of these robots were later modified by the Great Being Serecio, and he had them mass-produced for his army.

At some point in his life after this but before his death, he was taken from his time and deposited into the far future, in which Turaga-Makuta Kakamu believed to be dying and had activated the cylinder to summon Yntral to aide him. Yntral was shocked at this development, but he trusted his friend's judgement. As he had carried XK-6 at the moment when he was taken from his own time, he had the robot to deploy against Blackout, who had taken control of Darkmount and had turned it into a giant robot body. The efforts of Yntral and XK-6 might have done considerable damage to a fellow biomechanical or organic being, but their attacks against the giant city-ship robot were downright pathetic. In the end, Blackout's giant form was destroyed by Kakamu commencing a Nova Blast through an energy amplifier taken from the Ironclad. The cylinder that was keeping the temporal link to both time zones open was destroyed in the blast, so Yntral and XK-6 were returned to their own time as a result.

Yntral perished during the destruction of the Matoran Universe by Blackout.