|Functionalities||Keys to unlock entrances, reveal objects, etc.|
The Makoki Stones were rock objects used as keys through a magical bond. Originally, they were one stone, but it was split into six stones. The stone had a record of every Brotherhood of Makuta member, their skill level, weaknesses, current location, etc.
The Toa Hordika had to find the Makoki Stones to get the Mask of Light. After assembling the six pieces, they arrived at a temple, where they placed the pieces onto a table to reveal the mask. The stones were then taken to Mata Nui.