Manas

Manas were a type of gigantic, crab-like RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts., both smart and strong, and reckoned the most dangerous of the Rahi on Mata Nui. MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. kept them as the most powerful guardians of his lair, where no single Toa could hope to withstand a Manas's claws.

Toa Metru NokamaNokamaNokama served as Toa Metru of Water, endured the Hordika mutation, and led Ga-Koro and later Ga-Metru as Turaga through three eras. first encountered the creatures during her team's first journey to Mata Nui, watching two of them attack a sea slug Rahi. She named them "Manas," the Matoran word for monster. When the Toa Mata later reached Makuta's lair in MangaiaMangaiaThe hidden stronghold of Teridax beneath the island of Mata Nui, containing Energized Protodermis and connected to the Bohrok Nest., they faced a group of Manas under his control and could only overcome them by merging into the Toa Kaita, WairuhaWairuhaWairuha is a Toa Kaita and member of the Toa Nuva, native to Artakha, who serves as a Guardian of the Matoran. Wearing the Great Rua Nuva, Wairuha wields enhanced powers of Air, Water, and Ice alongside Enhanced Wisdom, and carries the Air Katana and Aqua Axes. and AkamaiAkamaiAkamai is a Toa Kaita and member of the Toa Nuva, formed from the combined essence of three Toa, who serves as a guardian of the Matoran. Born of Artakha, Akamai wields the Great Aki Nuva and commands enhanced powers of Fire, Stone, and Earth alongside Enhanced Valor, and carries Magma Swords, a Kodan Ball, and Feet Additions into battle, clad in red, brown, and black..

Two Manas were later encountered by Toa OnuaOnuaOnua was the Toa Mata and Toa Nuva of Earth, a quiet, deliberate warrior whose patience and underground mastery anchored his team across the Matoran Universe. Nuva and Turaga WhenuaWhenuaToa Metru of Earth and later Turaga of Onu-Koro, formerly an Onu-Metru archivist whose career in the Archives shaped his role across the rescue of Metru Nui and the long residency on Mata Nui. during their search for the Kanohi Nuva. Karzahni also kept several Manas in his realm. The creatures were drawn to heat, and in the wild they would turn on one another once they ran out of opponents to fight. Onua once exploited this nature by pitting a Kofo-Jaga against a group of Manas to defeat them. Like other Rahi, a Manas could be subdued by knocking off its infected Kanohi.