The Mask of Adaptation was a Kanohi that automatically altered its user's body to adapt to their surroundings, including combat situations, local enviroment, and the weather. The mask was always on at a low level and scanning the local environment; if it sensed the user needed to change, the mask would change them immediately. The mask's mutation of the user lasted until/unless they were altered back, so the mask's power would return to a low level after mutating the wearer. However, if the mask was knocked off while the user was altered, then they were stuck in that form.