“...[Onewa] triggered his mask power, reaching into the mind of Matau. As a crafter, he knew just when a hammer was needed and when a more delicate tool would get the job done. He carefully applied the mask-energies to drive out the Vahki's influence.”
The KanohiKomau was the Mask of Mind Control. It gave its user the power to see into another's mind and control it. However, it did not allow power over beings with no mind, such as Vahki and some types of Rahi. The Noble version could not control creatures as mentally powerful as the user for as long as the Great Komau. Both versions could create mental pain in the target.
Komau were carved out of a mixture of Freeze, Weaken and Remove PoisonKanoka on Metru Nui.
The Noble Komau was first released in 2001 as part of the Turaga Onewa set. It was also released in the colors of the other Turaga: orange, lime green, light blue, dark grey, and light grey. These other colors could be found in randomly packaged Mask Packs. Two yellow Komau were also included in the Manas set. In 2004 the Noble Komau was re-released in a dark blue-and-silver form with the Vhisola small set.
In 2004, the Great Komau was first released in the Toa Metru Onewa canister set. In 2005, Onewa's Komau was released in a Hordika-mutated version with the Toa Hordika Onewa canister set.