The Mask of Stillkeeping is a Kanohi that Newhu got when he transformed into a Holy Toa. He can use it to stop the movement of any object of character and keep them still. He can even stop them in mid air so that the object floats there without moving.

Newhu discovered his mask power when the Giant Fish was about to destroy his and his friends ship. He held the fish still in the air while the boat was moved aside. Newhu then let go and the Giant Fish plunged beneath the waves.