Here is my entry for the Brotherhood of Makuta community project, Aplekisa.
Aplekisa was a Makuta. That much is obvious. However, he was an old one, and a boastful one too. He made very good rahi, and always boasted to the others. He made many different creatures, including his pet, Tyromous. Aplekisa was quite rude, and a drama queen. He liked to talk about his rahi, it was all on his mind. His pet was a bit more agreeable, seeming to follow Aplekisa’s orders without question, and keep still otherwise. However, after the defeat of the barraki, the other Makuta were still full of energy from the victory, and as Teridax plotted to take over Mata Nui, the other Makuta secretely killed Aplekisa and Tyromous. They were killed due to Aplekisa’s attempts to try to force themselves to be the leader of rahi production. They thought they were the best to command the production.
More info about his death in the comments!
Powers
Aplekisa could ironically not interact with his rahi with his mask. Instead, it was a mask with the power to momentarily make the target perswaded to follow any orders by the user. (I’m not sure if that is a Kanohi, if so, please let me know.) His spear could heat up for brief periods, allowing the weapon to fuse together any joints it hit.
Aplekisa’s black sword could secrete a liquid that wore down the metal making the body of the target.
I am aware that Tyromous looks like Fenrakk. Perhaps Fenrakk’s species came from Aplekisa.