Name: Chasnon
Assigned Region: None
Kanohi: Hau, Mask of Shielding
Status: Dead
Like all Makuta, Chasnon was created by Mata Nui from a pool of Antidermis somewhere on the southern islands and joined the Brotherhood of Makuta. He created some minor Rahi at the beginning, but soon was tasked by Miserix to travel to the Matoran Universe, report problems and recruit promising individuals. The later Dark Hunters code-named Seeker and Takadox were two of many, which he managed to win for the ranks of the Brotherhood. It was also him, who first noticed the outbreak of the Matoran Civil War in Metru Nui.
When Miserix assigned regions to Makuta, after Teridax ended the civil war, Chasnonās job was shortened to solely recruiting, which didnāt suit with him very well, as he didnāt like the job very much, because even though he was good at it, since he could be very persuasive and had a good intuition about the nature of others, he had always wanted to be a general or at least a captain in the army of the Brotherhood.
When Teridax declared his plan, Chasnon joined him, after he saw that the majority of the Brotherhood stood behind Teridax, fearing what might become of him, if he chose to vote for Miserix. But he also saw a chance to finally get a new assignment.
Indeed Teridax eventually provided him with a new job, although Chasnon hated that one even more. After the Makutaās Antidermis became gaseous again, and someone found out how easy it now was for them to create Kraata and thus Rahkshi, Chasnon was instructed to create an army for the Brotherhood. However, he wasnāt going to be commanding that army.
Again though, Chasnon subordinated himself and went to work. He kept at it for several thousand years, until the Toa Hagah rebelled against their master and stole the Avohkii and the Makoki Stone from Destral.
Seeing it as a simple matter of time until everyone would notice that the Brotherhood had strayed from its original purpose, Teridax decided to speed things up a little. The virus with which the Great Spirit could be cast into slumber had been ready for a few centuries, but the application of it would have to be taken special care of.
Teridax didnāt know where specifically to apply the virus, but that it had to be used somewhere inside the more hidden, vital parts of the Great Spirit Robot. As there was no way to say what might happen to whoever travelled there, Teridax decided to send some minor Makuta, that was expendable. Thus Chasnon was given the virus and his thoughts were telepathically linked to Teridaxās, so that the leader of the Brotherhood could be constantly aware, on how things stood, and would be able to give orders at any time, for example, when, where, and how exactly to apply the virus.
Chasnon again wasnāt too fond of his assignment, but knew that he didnāt have a choice. But perhaps, if he successfully carried out this mission, he would finally get a reward to his liking. And after all, the depths of the Great Spirit Robot werenāt necessarily dangerous, although no one ā not even Mutran ā knew exactly, what awaited there. After decades of searching, Chasnon finally found an entryway to the usually unaccessible parts of the Great Spirit Robot and eventually reached a ānerve clusterā, where Teridax was sure, the virus could be applied properly. Chasnon was instructed to wait there for his signal. When Teridax took over the identity of Turaga Dume in Metru Nui and proceeded in eliminating the Toa of the city, he finally gave the signal and Chasnon inserted the virus into Mata Nuiās system. Then again Chesnon was ordered to wait and keep track of potential problems.
He was still there, when the Great Cataclysm happened. The shock of the impact of the Great Spirit Robot on Aqua Magna sent him crashing into an energy field close by, that heavily damaged his armor. With no way of fixing it, his Antidermis leaked out and eventually dispersed, which killed him.
Bio provided by @Gilahu, edited by me.