Rynur was a Hand of Artakha member. He lost his left arm from the elbow down and replaced it with a large ax. He was always a very fierce and rash fighter.
After the disbandment of the Hand, Rynur roamed the Matoran Universe dealing justice whenever he could. He has since migrated to Spherus Magna and continues to do much the same there.
Rynur has the ability to control Rahi as well as inflict and remove many different poisons.
When fighting hand-to-hand, he not only relies on his ax but his right arm's wrist-blades. Made from pure, solid protodermis, these two separate blades do not dull easily.
He wears the Kanohi Miru, Great Mask of Levitation.