Makuta Teridax was the main antagonist of Lego Bionicle and was also the leader of the evil Brotherhood of Makuta . He was the mastermind who is behind the invasion of darkness that occured in the story . He also wore Kanohi Kraakhan , the Mask of Darkness and have the ability to change into any forms at will .
Not much was known of Teridax's past but he was once created by the Great Beings to serve alongside the Great Spirit Mata Nui . When Teridax came to existence , he soon became the official for Makuta Miserix , who was the past leader of the Brotherhood of Makuta . Although he recently served his emperor , Teridax also have the biological relationship with Mata Nui and they eventually became allies with each other . With their vow for peace and harmony , they decided that they are willing to protect the Matoran at all costs .
However , their lives change to the extreme turn when Pridak , a former member of the Brotherhood of Makuta as well as his organization , the League of the 6 Kingdoms launched their rebellion against their creators . However , Pridak and his lackeys were finally defeated by both Mata Nui and Teridax and the Brotherhood of Makuta then decide to execute Pridak and his allies for their crimes . Luckily , Botar , an advisor of Mata Nui decided to send them to the Pit , the prison which was for criminals .
Soon after the rebellion crushed , greed and ambition had blinded Teridax soon afterwards . He now believes that the only way to preserve peace and harmony was to enslave the entire Matoran for the sake of his ambition . Fearing that Mata Nui might found out his true nature , Teridax betrayed him and thus , destroying him but upon not realising that Mata Nui's spirit escaped . After that , he manipulates the other members of the Brotherhood of Makuta into serving his cause , thus banishing Miserix from the organization .
A few years later , Teridax and his minions launched their first attack on the realm of Artakha and successfully stole Kanohi Avohkii , the Mask of Light . Then , they keep the mask in their hideout , Destral . However unknown to them , the Toa Hagah led by Norik eventually learned their plan and started to launched their attack on Destral . During the assault , Norik and his friend Iruini were separated from the other Toa Hagah and confronted Teridax and question his betrayal . Despite Teridax's formidable powers , both Norik and Iruini eventually sealed him in the Protodermis crystal and thus , imprisoning him before they along with the rest of the Toa Hagah were eventually mutated into the strange-looking creatures called Rahaga by Roodaka , Queen of the Visorak horde .
