Nuju (DMU)

In the Dark Mirror Universe, Nuju was a Ko-Matoran who joined the resistance against Tuyet. He was eventually killed by Sanox.

Dark Mirror
Nuju was a Ko-Matoran who joined a resistance team led by Pohatu with the goal to defeat Tuyet and remove her from power. In the Battle at the Coliseum, Nuju assisted Guardian in fending off a Toa of Magnetism, but was eventually dragged into the Metru Nui Archives by wild plants controlled by a Toa of Plant Life. The others assumed that Nuju was killed.

Dusk and Dawn
However, Nuju managed to hold his own against the plantlife until its controller was killed in battle by one of the other rebels on the surface. When Nuju regained consciousness, he wriggled out of the dead vines and heard a terrible scream. He followed the scream to see Sanox being transformed into a Toa of Shadow by the Kanohi Kraahkan. Sanox heard Nuju's movements and attacked him to test his abilities. Nuju tried to escape, but Sanox hunted him down and restrained him with a Shadow Hand. In Nuju's last few moments, he pondered why evil seemed to be winning, but remembered that there must always be dusk before dawn.